4x-2x+3(x+1) = 4(x-1)+2-3
4x-2x+3x+3 = 4x-4+2+3
4x-2x+3x-4x = -3-4+2+3
x = -2
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4x-2x+3(x+1) = 4(x-1)+2-3
4x-2x+3x+3 = 4x-4+2+3
4x-2x+3x-4x = -3-4+2+3
x = -2