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Resolvați sistemele:
(3x-2y-2)-2(2x+y=4)+9=-15.
(4(2x-y+2)-3(x-2y-5)-7=32
(3x-3y+2)+2(-x+2y-5)=-11
c) (4(3x-2y-3)-5(2x-3y-4)=28
istemele:
; b)
(2(-2x-y+3)-3(-x+3y-4)+5=-8
4(x+2y+3)-3(2x+y+5)+7=23
d)
(2(4x-3y+7)-3(2x-y+4)=-3
3(2x+y-5)+2(-x-y+3)=2