1)2x-7
2x=7
x=3.5
2)x+1
x=-1
3)3x+2
3x=-2
x=-2/3
4)x-1
x=1
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1)2x-7
2x=7
x=3.5
2)x+1
x=-1
3)3x+2
3x=-2
x=-2/3
4)x-1
x=1