Solve for x
x = \frac{35}{2} = 17\frac{1}{2} = 17.5
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4x+20=90
Combine x and 3x to get 4x.
4x=90-20
Subtract 20 from both sides.
4x=70
Subtract 20 from 90 to get 70.
x=\frac{70}{4}
Divide both sides by 4.
x=\frac{35}{2}
Reduce the fraction \frac{70}{4} to lowest terms by extracting and canceling out 2.
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