Question

Решите пж !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

{x-y=5   ⇒  x=y+5
{x+2y=-1

y+5+2y=-1
3y=-1-5
3y=-6
y=-6/3
y=-2

x=-2+5
x=3

Ответ: (3; -2)