Question

Resposta do sistema 2x-y=-8 e x+2y=6

Answer 1

2x-y=-8 x(2)

x+2y=6

4x-2y=-8

x+2y=6

5x=-2
x=-2/5

-2/5+2y=6

-2+10y=30

10y=30+2

10y=32

y=32/10

y=16/5