Answer
$L=\dfrac{V}{WH}$
Work Step by Step
Using the properties of equality, in terms of $
L
,$ the given equation, $
V=LWH
,$ is equivalent to
\begin{array}{l}\require{cancel}
\dfrac{V}{WH}=\dfrac{LWH}{WH}
\\\\
\dfrac{V}{WH}=L
\\\\
L=\dfrac{V}{WH}
.\end{array}