Solve for a
a = \frac{152}{5} = 30\frac{2}{5} = 30.4
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10a-9-15=280
Combine 4a and 6a to get 10a.
10a-24=280
Subtract 15 from -9 to get -24.
10a=280+24
Add 24 to both sides.
10a=304
Add 280 and 24 to get 304.
a=\frac{304}{10}
Divide both sides by 10.
a=\frac{152}{5}
Reduce the fraction \frac{304}{10} to lowest terms by extracting and canceling out 2.
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