X+2Y+2=0,3X+2Y-2=0 solve using elimination method
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x+2y+2=0
3x+2y-2=0
subtract both the equations
3x+2y-2=0
x+2y+2=0
2x-4=0
x=4/2
x=2
2+2y+2=0
2y=-4
y=-2
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