Question

{5x-y=1 {-10x+2y=-22
очень срочно

Answer 1

1. 5x-y=1
y=1-5x
2. - 10x+2*(1-5x)=-22
-10x+2-10x=-22
-20x=-22-2
-20x=-24
x=24:20
x=1,2
3. y=1-5*1,2
y=-5