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1-2x=-6x-3
4x=-4/:4
x=-1
2. 2-3x/1-x=-2/3
3(2-3x)=-2(1-x)
6-9x=-2+2x
11x=8/:11
x=8/11
3. 3/x=2/3x+1
3(3x+1)=2x
9x+3=2x
7x=-3/:7
x=-3/7