Question

resolva o sistema 2×-2y=2 ×-y=-3

Answer 1

2x-2y=2 ×-8=-3
×-y=-3 x=-3+8
×=5
×=-3+y

2x-2y=2
2.(-3+y)-2y=2
-6+2y-2y=2
2y-2y=2+6
8