## Intermediate Algebra (12th Edition)

a) $W=\dfrac{A}{L}$ b) $L=\dfrac{A}{W}$
a) Using the properties of equality, in terms of $W ,$ the given formula, $A=LW ,$ is equivalent to \begin{array}{l}\require{cancel} \dfrac{A}{L}=\dfrac{LW}{L} \\\\ \dfrac{A}{L}=W \\\\ W=\dfrac{A}{L} .\end{array} b) Using the properties of equality, in terms of $L ,$ the given formula, $A=LW ,$ is equivalent to \begin{array}{l}\require{cancel} \dfrac{A}{W}=\dfrac{LW}{W} \\\\ \dfrac{A}{W}=L \\\\ L=\dfrac{A}{W} .\end{array}