Solve for x
x=55
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120-x-10=x
To find the opposite of x+10, find the opposite of each term.
110-x=x
Subtract 10 from 120 to get 110.
110-x-x=0
Subtract x from both sides.
110-2x=0
Combine -x and -x to get -2x.
-2x=-110
Subtract 110 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-110}{-2}
Divide both sides by -2.
x=55
Divide -110 by -2 to get 55.
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