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      <title>Matematicas by </title>
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      <description>Eliminacion en ecuaciones  de primer grado</description>
      <language>en-us</language>
      <pubDate>2016-11-21 22:18:41 UTC</pubDate>
      <lastBuildDate>2025-12-05 10:26:26 UTC</lastBuildDate>
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         <title>Paso 1._ Elegir las dos ecuaciones  ecuación 1,ecuación 2</title>
         <author>lt95003</author>
         <link>https://padlet.com/lt95003/xai48iryr35m/wish/139429050</link>
         <description><![CDATA[<div><br>y=x/2-- 2<br>3x+y= 0<br><br>Las re acomodamos:<br>- x/2+y= -2&nbsp;<br>3x+2y= 0&nbsp;<br><br><br>PASO 2._ seleccionar la variable a eliminar (Y)<br>la ecuación 1 la multiplicamos (-2)&nbsp;<br><br>-2°- 2 x - 2y = 2.2<br>----------<br>&nbsp; &nbsp; &nbsp;2&nbsp;<br>3xt2y=0 ----- se eliminan<br><br><br>PASO 3._ sumar la ecu. (1) mas la ec (2) .<br><br>x- 2y = 4<br>3x + 2 y =0&nbsp;<br>-----------------------<br>4 x&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 4&nbsp;<br><br><br>PASO 4._ despejar la variable que no se elimino:<br><br><br>x= 4<br>&nbsp; &nbsp; ---- = 1<br>&nbsp; &nbsp; &nbsp; 4<br><br>PASO 5._ sustituir el valor de x cada una de las 2 ecuaciones para despejar y<br><br>3(1)+2y=0<br><br>y=&nbsp; - 3<br>&nbsp; &nbsp; &nbsp; &nbsp;----<br>&nbsp; &nbsp; &nbsp; &nbsp;2<br><br><br><br><br><br><br></div>]]></description>
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         <pubDate>2016-11-22 17:51:58 UTC</pubDate>
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