Solve for q
q = -\frac{5}{2} = -2\frac{1}{2} = -2.5
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70-2q-2q=80
Combine -q and -q to get -2q.
70-4q=80
Combine -2q and -2q to get -4q.
-4q=80-70
Subtract 70 from both sides.
-4q=10
Subtract 70 from 80 to get 10.
q=\frac{10}{-4}
Divide both sides by -4.
q=-\frac{5}{2}
Reduce the fraction \frac{10}{-4} to lowest terms by extracting and canceling out 2.
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