https://padlet.com/yuna7933/xdooif5p5qdfj4r0 학번과 이름을 먼저 적어주세요. en-us 2021-05-31 03:50:50 UTC 2025-12-18 00:01:12 UTC hello@padlet.com yuna7933 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1572643352 풀이과정을 쓰시오.]]> 2021-05-31 03:54:54 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1572643352 yuna7933 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1572648095 풀이과정을 쓰시오]]> 2021-05-31 03:58:09 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1572648095 yuna7933 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1572707641 풀이과정을 쓰시오]]> 2021-05-31 04:34:49 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1572707641 yuna7933 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1572708988 풀이과정을 쓰시오]]> 2021-05-31 04:35:34 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1572708988 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578531650 2021-06-02 04:56:44 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578531650 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578531708 2x-y=3                     4x-2y=6
3x+2y=8                 3x+2y=8
                                 7x=14    x=2
2X2-y=3 y=1]]> 2021-06-02 04:56:46 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578531708 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578531808 4x - 2y = 6
3x + 2y = 8
7x = 14
x = 2
y = 1 ]]> 2021-06-02 04:56:49 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578531808 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578532035 2021-06-02 04:56:57 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578532035 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578532065 2x-y=3
3x+2y=8
-------------------------------------------
 4x-2y=6
+3x+2y=8
----------------------------------
 7x=14 x=2
y=1]]> 2021-06-02 04:56:57 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578532065 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578532255 4x-2y=6
3x+2y=8
7x=14
x=2
y=1]]> 2021-06-02 04:57:04 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578532255 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578532315 6x-3y=9
6x+4y=16
y=1
x=2]]> 2021-06-02 04:57:05 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578532315 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578533167 4x+5y=-1
빼기 4x+6y=2
-y=-3
y=3
2x+9=1
2x=-8
x=-4

]]> 2021-06-02 04:57:30 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578533167 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578533746 2x-8y=6
2x-9y=8          

y=-2
x=-5]]> 2021-06-02 04:57:48 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578533746 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578534098      4x-2Y=6
+
     3X+2y=8
___________________________________
7x=14
x=2,y=1]]> 2021-06-02 04:57:59 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578534098 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578534276 2021-06-02 04:58:04 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578534276 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578534512 4x-2y=6
3x+2y=8
7x=14
x=2
y=1]]> 2021-06-02 04:58:11 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578534512 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578534744 2021-06-02 04:58:18 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578534744 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578535632 2x - 8y = 6
2x - 9y = 8
y = -2
x = -8]]> 2021-06-02 04:58:46 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578535632 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578535662 4x - 2y = 6
3x + 2y = 8
7x = 14
x = 2
y = 1 

]]> 2021-06-02 04:58:46 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578535662 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578536482 4x - 2y = 6
3x + 2y = 8
7x = 14
x = 2
y =1]]> 2021-06-02 04:59:15 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578536482 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578536633 2021-06-02 04:59:19 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578536633 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578536859 2021-06-02 04:59:27 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578536859 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578537272  2x-8y=6
- 2x-9y=8
--------------------------------------
y=-2
x=-5]]> 2021-06-02 04:59:42 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578537272 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578537377 3x+2(2x-3)=8
3x+4x-6=8
7x=14
x=2,y=1]]> 2021-06-02 04:59:46 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578537377 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578537395 x-4y=3                    2x-8y=6
2x-9y=8                 2x-9y=8
                                  y=-2
x+(-4)X(-2)=3             x=-5             

]]> 2021-06-02 04:59:47 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578537395 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578537409 2021-06-02 04:59:47 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578537409 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578537637 4x - 2y = 6
3x + 2y = 8

7x = 14
x = 2
y = 1 ]]> 2021-06-02 04:59:56 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578537637 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578538476    4x-2y=6
+ 3x+2y=8
7x=14 x=2 y=1

]]> 2021-06-02 05:00:24 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578538476 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578538478 5x-6y=16
더하기 12x+6y=18
17x=34
x=2
8+2y=6
2y=-2
y=-1]]> 2021-06-02 05:00:24 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578538478 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578538617 2x-8y=6
-2x-9y=8
y=-2
x=-8]]> 2021-06-02 05:00:29 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578538617 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578538751 4x-2y=6    3x+2y=8
7x=14
x=2 y=1]]> 2021-06-02 05:00:32 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578538751 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578539148 x+20y=-9
x+2y=9
18y=-18

y=-1
x=11]]> 2021-06-02 05:00:40 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578539148 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578539641 2x-8y=6
2x-9y=8
y=-2
x=-5]]> 2021-06-02 05:00:57 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578539641 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578539859 2021-06-02 05:01:05 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578539859 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578539933 x + 20y = -9
x + 2y = 9
y = -1
x = 11]]> 2021-06-02 05:01:07 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578539933 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578540545 10(0.1x+2y=-0.9)
3(1x/3+2y/3=3)
----------------------------------------------
x+20y=-9
- (x+2y=9)
------------------------
18y=-18
y=-1
x=11]]> 2021-06-02 05:01:29 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578540545 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578540803 2x-8y=6       2x-9y=8
y=-2 x=-5]]> 2021-06-02 05:01:38 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578540803 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578541186 2x-y=3  3x+2y=8  
 4x-2y=6
-3x+2y=8
x=2 y=1]]> 2021-06-02 05:01:50 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578541186 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578541287 4x-2y=6
3x+2y=8
7x=14
x=2
y=1]]> 2021-06-02 05:01:53 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578541287 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578541311 2021-06-02 05:01:54 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578541311 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578542002 2x-8y=6
2x-9y=8
y=-2
x=-5]]> 2021-06-02 05:02:13 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578542002 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578542079 6x-3y=9
6x+4y=16
-y=-7
y=7
x=-2

]]> 2021-06-02 05:02:16 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578542079 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578542840 -6x + y = -3
20x - 3y = 13

-18x + 3y = -9
20x - 3y = 13
2x = 4
x = 2
y = 9]]> 2021-06-02 05:02:40 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578542840 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578542956 10(0.1x+2y=-0.9)
x+20y=-9
-x-2y=9
y=-1
x=11

]]> 2021-06-02 05:02:43 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578542956 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543058 2021-06-02 05:02:47 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543058 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543125 x+20y=-9
x+2y=9
y=-1
x=11

]]> 2021-06-02 05:02:49 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543125 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543201 -6x+y=-3
20x-3y=13

-18y+3y=-9
20x-3y=13

2x=4
x=2
y=9]]> 2021-06-02 05:02:51 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543201 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543266 2021-06-02 05:02:53 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543266 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543284 0.1x+2y=-0.9           x+20y=-9
1/3x+2/3y=3           x+2y=9
                                   18y=-18  y=-1
x+20X(-1)=-9 x=11]]> 2021-06-02 05:02:53 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543284 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543361 2021-06-02 05:02:56 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543361 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543820 x+20y=-9
x+2y=9
18y=-18
y=-1
x=11]]> 2021-06-02 05:03:10 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578543820 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578545485 2021-06-02 05:04:00 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578545485 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578546080 x+20y=-9
빼기 x+2y=9
18y=-18
y=-1
x+(-2)=9
x=11]]> 2021-06-02 05:04:17 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578546080 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578546473 -6x+y=-3
20x-3y=13

-18x+3y=-9
20x-3y=13
2x=4
x=2
y=9]]> 2021-06-02 05:04:27 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578546473 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578546876 2x-8y=6
2x-9y=8          
y=-2
x=-5]]> 2021-06-02 05:04:40 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578546876 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578547326 2x - 8y = 6
2x - 9y = 8
y = -2
x = -5]]> 2021-06-02 05:04:54 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578547326 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578547393 2x-8y=6
2x-9y=8
y=2
x=]]> 2021-06-02 05:04:56 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578547393 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578547698 2021-06-02 05:05:02 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578547698 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578547913 -18x+3y=-9
20x-3y=13
---------------------------------------
2x=4
x=2
y=9]]> 2021-06-02 05:05:08 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578547913 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578547946 x+20y=-9
x+2y=9
18y=-18
y=-1
x=11]]> 2021-06-02 05:05:09 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578547946 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578548692 2021-06-02 05:05:33 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578548692 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578549008 -18x+3y=-9
20x-3y=13
2x=4
x=2
y=9]]> 2021-06-02 05:05:41 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578549008 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578549078 x+20y=-9    x+2y=9
18y=-18     
y=-1 x=11]]> 2021-06-02 05:05:44 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578549078 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578550551 -3x+1/2y=-3/2         -18x+3y=-9
2x-0.3y=1.3              20x-3y=13
                                    2x=4   x=2
20X2-3Xy=13 y=9]]> 2021-06-02 05:06:29 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578550551 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578550654 2021-06-02 05:06:33 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578550654 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578550931     2x-8y=6
_
    2x-9y=8
___________________________________
_y=2
y=-2,x=-5]]> 2021-06-02 05:06:42 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578550931 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578551346 6x+y=-3
20x-3y=13
-18y+3y=-9
20x-3y=13
2x=4
x=2
y=9]]> 2021-06-02 05:06:54 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578551346 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578552215 2021-06-02 05:07:23 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578552215 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578552943 2x- 8y=6
2x-9y=8
y=-2
x=-5]]> 2021-06-02 05:07:47 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578552943 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578552981 -6x+y=-3
20x-3y=13

18x-3y=9
20x-3y=13

x=2
y=9

]]> 2021-06-02 05:07:48 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578552981 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578553987 x + 20y = -9
x + 2y = 9
18y = -18
y = -1
x = 11
 ]]> 2021-06-02 05:08:20 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578553987 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578554966 2021-06-02 05:08:47 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578554966 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578556447 4x - 2y = 6
3x + 2y = 8
7x = 14
x = 2
y =1]]> 2021-06-02 05:09:27 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578556447 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578559732 2021-06-02 05:10:58 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578559732 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578561294 x+20y=-9
x+2y=9
18y=-18
x=11
y=-1]]> 2021-06-02 05:11:42 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578561294 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578561730 -6x+y=-3
곱하기 -3
18x-3y=9

20x-3y=13
빼기 18x-3y=9
2x=4
x=2

-12+y=-3
y=9]]> 2021-06-02 05:11:55 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578561730 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578562067 x+20 y=-9
X+2 y=9
18 y=-18
y=-1
X= 11]]> 2021-06-02 05:12:06 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578562067 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578562583 -18x + 3y = -9
20x - 3y = 13
2x = 4
x = 2
y = 9

]]> 2021-06-02 05:12:23 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578562583 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578565630 2x-8y=6
-2x-9y=8
y=-2
x=-8]]> 2021-06-02 05:13:36 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578565630 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578565981 -18y+3y=-9
20x-3y=13
2x=4
x=2
y=9]]> 2021-06-02 05:13:44 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578565981 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578566177 x+20y=-9
x+2y=9
18y=-18
y=-1
x=11]]> 2021-06-02 05:13:49 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578566177 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578574157 -18y+3y=-9
20x-3y=13
2x=4
x=2
y=9]]> 2021-06-02 05:17:26 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578574157 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578574318 20107 박민주]]> 2021-06-02 05:17:31 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578574318 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578574938      X+20y=-9
_
    X+2y=9
___________________________________
-18y=18
y=-1,x=11]]> 2021-06-02 05:17:49 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578574938 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578585546 -6 X + y=-3
20 X- 3 y=13
-18 X+ 3y =-9
20 X-3 y=13
2 X=4
X=2
y=9]]> 2021-06-02 05:23:11 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578585546 https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578586240      -18x+3y=-9
+
     20x-3y=13
___________________________________
2x=4 
x=2,y=9]]> 2021-06-02 05:23:35 UTC https://padlet.com/yuna7933/xdooif5p5qdfj4r0/wish/1578586240