Solve for x
x = \frac{80}{3} = 26\frac{2}{3} \approx 26.666666667
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180-5x-x-20=0
Combine -3x and -2x to get -5x.
180-6x-20=0
Combine -5x and -x to get -6x.
160-6x=0
Subtract 20 from 180 to get 160.
-6x=-160
Subtract 160 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-160}{-6}
Divide both sides by -6.
x=\frac{80}{3}
Reduce the fraction \frac{-160}{-6} to lowest terms by extracting and canceling out -2.
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