Solve for x
x=3
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3x-6-x=0
Subtract x from both sides.
2x-6=0
Combine 3x and -x to get 2x.
2x=6
Add 6 to both sides. Anything plus zero gives itself.
x=\frac{6}{2}
Divide both sides by 2.
x=3
Divide 6 by 2 to get 3.
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