Solve for H
H=\frac{Va^{3}}{6}
a\neq 0
Solve for V
V=\frac{6H}{a^{3}}
a\neq 0
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Va^{4}=6aH
Multiply both sides of the equation by a^{4}.
6aH=Va^{4}
Swap sides so that all variable terms are on the left hand side.
\frac{6aH}{6a}=\frac{Va^{4}}{6a}
Divide both sides by 6a.
H=\frac{Va^{4}}{6a}
Dividing by 6a undoes the multiplication by 6a.
H=\frac{Va^{3}}{6}
Divide Va^{4} by 6a.
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