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2(x-1)+3-x=3(x-1)
2x-2+3-x=3x-3
x-3x=-3-1
-2x=-4 /:(-2)
x=2
2(-1+x)+3-x=3(x-1)
-2+2x+3-x=3x-3
1+x=3x-3
1+3=3x-x
4=2x /÷2
2=x