Question

resolva o sistema

x=2y
2x-5y=3

Answer 1

$\left \{ {{x=2y} \atop {2x-5y=3}} \right. \\ \\ 2*(2y)-5y=3 \\ 4y-5y=3 \\ -y=3 \\ y=-3 \\ \\ x=2*(-3) \\ x=-6$