Solve for x
x = \frac{5}{2} = 2\frac{1}{2} = 2.5
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x+7x=\frac{100}{5}
Divide both sides by 5.
x+7x=20
Divide 100 by 5 to get 20.
8x=20
Combine x and 7x to get 8x.
x=\frac{20}{8}
Divide both sides by 8.
x=\frac{5}{2}
Reduce the fraction \frac{20}{8} to lowest terms by extracting and canceling out 4.
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