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-4x = 4
x = -1
3(x-1) = -(x-1)+4
3x-3 = -x+1+4
4x-3 = 5
4x = 8
x = 2
2x-6x=12-8
-4x=4
x=4÷(-4)
x=-1
2.
3x-3=-x+1+4
3x+x=5+3
4x=8
x=8÷4
x=2