Ответ

Автор - sssunshine
1) 2х-3(у+1)=4х
-2(-2х+2)+у=0
2)2x-3(y+1)=4x
y=-4x+4
3)2x-3(-4x+4+1)=4x
4)x=3/2
5)y=-4*3/2+4
6)y=-2
(x,y)=(3/2,-2)

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