Solve for p
p=-\frac{9q}{2}+28
Solve for q
q=\frac{56-2p}{9}
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2p=56-9q
Subtract 9q from both sides.
\frac{2p}{2}=\frac{56-9q}{2}
Divide both sides by 2.
p=\frac{56-9q}{2}
Dividing by 2 undoes the multiplication by 2.
p=-\frac{9q}{2}+28
Divide 56-9q by 2.
9q=56-2p
Subtract 2p from both sides.
\frac{9q}{9}=\frac{56-2p}{9}
Divide both sides by 9.
q=\frac{56-2p}{9}
Dividing by 9 undoes the multiplication by 9.
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