Question

resolva com o metodo de adicao


A) {2x- 4y = 2
{-2x + 2y = -4​

Answer 1

$\left \{ {{2x- 4y = 2} \atop {-2x + 2y = -4}} \right.$

$(2x-4y)+(-2x+2y)=2+(-4)$

$2x-4y-2x+2y=2-4$

$-2y=-2$

$2y=2$

$y=1$

$2x-4.1=2$

$2x-4=2$

$2x=2+4$

$2x=6$

$x=\frac{6}{2}$

$x=3$