Question

решите систему

4x+y=x+2
2x-2y=3-y

Answer 1

$left { {{4x+y=x+2} atop {2x-2y=3-y}} right. \ left { {{y=2-3x} atop {2x-y=3}} right. \ 2x-(2-3x)=3 \ 5x=5 ;x=1 \ y=2-3=-1$
Ответ: (1;-1)