# data[].attributes.body
Plug in 3x for y.

# data[].attributes.body
First Step
plug in 5x for y

# data[].attributes.body
plug in x+1 for y

# data[].attributes.body
x+y=-7
-x     -x
y=-7-x

# data[].attributes.body
Plug in (-2x+3) for y

# data[].attributes.body
3x=x-2

# data[].attributes.body
2x-7-x=-4

# data[].attributes.body
2x=-2

# data[].attributes.body
5x+1=6

# data[].attributes.body
2x-12x+18=2

# data[].attributes.body
x = -1

# data[].attributes.body
x=1

# data[].attributes.body
x=3

# data[].attributes.body
-10x+18=2

# data[].attributes.body
y=2

# data[].attributes.body
y=-10

# data[].attributes.body
y=10

# data[].attributes.body
-10x=-16

# data[].attributes.body
Y=-3