Question

-x + 2y =-1
5x - 2y = -1

Answer 1

Resposta:

-x+2y=-1

5x-2y=-1

4x=-2

x=-2/4

x=-1/2

-x+2y=-1

-(-1/2)+2y=-1

1/2+2y=-1

2y=-1-1/2

2y=-3/2

y=-3/2/2

y=-3/4