Question

2x-1/2=7-y/3 ×+2y=y+2 resolva o sistema

Answer 1

Resposta:

2x-1/2=7-y/3

x+2y=y+2

-------------------

12x-6=42-2y

12x+2y=42+6

12x+2y=48

x+y=2 x(-2)

----------------

12x+2y=48

-2x-2y=-4

----------------

10x=44

x=44/10=22/5

22/5+y=2

22+5y=10

5y=10-22

y=-12/5

Explicação passo-a-passo: