Solve for x
x=1
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3-x-2x=0
Subtract 2x from both sides.
3-3x=0
Combine -x and -2x to get -3x.
-3x=-3
Subtract 3 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-3}{-3}
Divide both sides by -3.
x=1
Divide -3 by -3 to get 1.
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