Question

{2x+4y=6
x-2y=3

calculo e resposta

Answer 1

$\left \{ {{2x+4y=6~~*1} \atop {x-2y=3~~~*(-2)}} \right. \\ \\ \left \{ {2x+4y=6} \atop {-2x+4y=-6}} \right. \\ \\0+8y=0\\ \\\boxed{y=0}\\ \\x=3+2y\\ \\\boxed{x=3}$