Solve for x
x=2
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7-x-2x=1
Subtract 2x from both sides.
7-3x=1
Combine -x and -2x to get -3x.
-3x=1-7
Subtract 7 from both sides.
-3x=-6
Subtract 7 from 1 to get -6.
x=\frac{-6}{-3}
Divide both sides by -3.
x=2
Divide -6 by -3 to get 2.
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