Question

X+5y -7
3X-5y=11
Me ajudem

Answer 1

Resposta:

x+5y=-7 (-3)

3x-5y=11

-3x-15y=21

3x-5y=11

-20y=32 (-1)

-20y=-32

y=-32/20

y=-8/5

x+5y=-7

x+5.(-8/5)=-7

x-8=-7

x=-7+8

x=1