Solve for x
x=7
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139-10x-2x=55
Subtract 2x from both sides.
139-12x=55
Combine -10x and -2x to get -12x.
-12x=55-139
Subtract 139 from both sides.
-12x=-84
Subtract 139 from 55 to get -84.
x=\frac{-84}{-12}
Divide both sides by -12.
x=7
Divide -84 by -12 to get 7.
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