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3x-3y=-3 2x-6y=2 -2(3x-3y)=(-3)-2 -6x+6y=6 2x-6y=2 -4x=8 (Divide by 4 on both sides) x= -2 Then substiture X back into one of the original equations to find Y.
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3x-3y=-3 2x-6y=2 -2(3x-3y)=(-3)-2 -6x+6y=6 2x-6y=2 -4x=8 (Divide by 4 on both sides) x= -2 Then substiture X back into one of the original equations to find Y.