Solve for q
q=20
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156-0.8q-5q=40
Subtract 5q from both sides.
156-5.8q=40
Combine -0.8q and -5q to get -5.8q.
-5.8q=40-156
Subtract 156 from both sides.
-5.8q=-116
Subtract 156 from 40 to get -116.
q=\frac{-116}{-5.8}
Divide both sides by -5.8.
q=\frac{-1160}{-58}
Expand \frac{-116}{-5.8} by multiplying both numerator and the denominator by 10.
q=20
Divide -1160 by -58 to get 20.
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