Solve for q
q=-\frac{p}{2}+3
Solve for p
p=6-2q
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6-2q=p
Swap sides so that all variable terms are on the left hand side.
-2q=p-6
Subtract 6 from both sides.
\frac{-2q}{-2}=\frac{p-6}{-2}
Divide both sides by -2.
q=\frac{p-6}{-2}
Dividing by -2 undoes the multiplication by -2.
q=-\frac{p}{2}+3
Divide p-6 by -2.
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