Question

La solución al sistema 10x-3y=36,2x+5y=-4,​

Answer 1

Respuesta:

   $x=3\\y=-2$

Explicación paso a paso:

     $10x-3y=36\\2x+5y=-4$

  $~~~~10x-3y=36\\-5(2x+5y)=-5(-4)\\\\~~~~~10x-3y=36\\-10x-25y=20\\\\-28y=56\\\\-y=\frac{56}{28}\\\\-y=2\\\\y=-2$                             $10x-3y=36\\\\10x-3(-2)=36\\\\10x+6=36\\\\10x=36-6\\\\x=\frac{30}{10}\\\\x=3$