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4x-3y=-24 |2
2x+2y=2 |3
.
8x-6y=-48
6x+6y=-6 _
2x+0 =-54
x =-54/2
x=-27
2x+2y =2
2(-27)+2y=2
-54+2y =2
-54-2 =2y
-54/2 =y
-28 =y
x +4y=
-27+4(-28)=
-27-112=
-139