Solve for p
p=-\frac{3q}{4}+5
Solve for q
q=\frac{20-4p}{3}
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4p=20-3q
Subtract 3q from both sides.
\frac{4p}{4}=\frac{20-3q}{4}
Divide both sides by 4.
p=\frac{20-3q}{4}
Dividing by 4 undoes the multiplication by 4.
p=-\frac{3q}{4}+5
Divide 20-3q by 4.
3q=20-4p
Subtract 4p from both sides.
\frac{3q}{3}=\frac{20-4p}{3}
Divide both sides by 3.
q=\frac{20-4p}{3}
Dividing by 3 undoes the multiplication by 3.
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