Question

{x-y=2, 3x-y2=6 решите задачу

Answer 1

3х -2(2-х)=6
3х-4-2х=6
Х-4=6
Х=10

Answer 2

x=2+y ; 3(2+y)- y2 =6 ; 6+3y-y2-6=0 ; -y2=3y=0 | *(-1) ; y2-3y=0 ; y(y-3)=0 ; y=3 ; x=2+3 ; x=5