Solve for h
h=\frac{q-4v}{4}
Solve for q
q=4\left(v+h\right)
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4h+4v=q
Swap sides so that all variable terms are on the left hand side.
4h=q-4v
Subtract 4v from both sides.
\frac{4h}{4}=\frac{q-4v}{4}
Divide both sides by 4.
h=\frac{q-4v}{4}
Dividing by 4 undoes the multiplication by 4.
h=\frac{q}{4}-v
Divide q-4v by 4.
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