Question

Método de igulacuon
X-y=-4
3x-2y=-5

Answer 1

X=-4+y
X=-5+2y/3

3(-4+y)=-5+2y
-12+3y=-5+2y
3y-2y=-5+12
Y=7

X=-4+y
X=-4+7
X=3

X=3
Y=7