a)3x-1-3=-4
3x=-4+1+3
3x=0|:3
x=0
b)6x-4=x+6
6x-x=6+4
5x=10|:5
x=2
c)x-3=2(2-3x)
x-3=4-6x
x=6x=4+3
7x=7|:7
x=1
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a)3x-1-3=-4
3x=-4+1+3
3x=0|:3
x=0
b)6x-4=x+6
6x-x=6+4
5x=10|:5
x=2
c)x-3=2(2-3x)
x-3=4-6x
x=6x=4+3
7x=7|:7
x=1