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3x+2-x=4
Subtract x from both sides.
2x+2=4
Combine 3x and -x to get 2x.
2x=4-2
Subtract 2 from both sides.
2x=2
Subtract 2 from 4 to get 2.
x=\frac{2}{2}
Divide both sides by 2.
x=1
Divide 2 by 2 to get 1.