3(x-2)+x=x-3
3x-6+x=x-3
3x+x-x=-3+6
3x=3|:3
x=1
4x-2=32
4x=32+2
4x=34|:4
x=34/4
x=17/2
x=8,5
15-(1-2x)=3x-1
15-1+2x=3x-1
2x-3x=-1-15+1
-x=-15|:(-1)
x=15
5x+7=4x+7
5x-4x=7-7
x=0
7x-(2-x)=6x+3
7x-2+x=6x+3
7x+x-6x=3+2
2x=5|:2
x=5/2
x=2,5
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3(x-2)+x=x-3
3x-6+x=x-3
3x+x-x=-3+6
3x=3|:3
x=1
4x-2=32
4x=32+2
4x=34|:4
x=34/4
x=17/2
x=8,5
15-(1-2x)=3x-1
15-1+2x=3x-1
2x-3x=-1-15+1
-x=-15|:(-1)
x=15
5x+7=4x+7
5x-4x=7-7
x=0
7x-(2-x)=6x+3
7x-2+x=6x+3
7x+x-6x=3+2
2x=5|:2
x=5/2
x=2,5