## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

$P=\dfrac{A}{1+rt}$
$\bf{\text{Solution Outline:}}$ To solve the given equation, $A=P+Prt$ for $P ,$ use the properties of equality to isolate the variable. $\bf{\text{Solution Details:}}$ Using the properties of equality to isolate the variable, the equation above is equivalent to \begin{array}{l}\require{cancel} A=P+Prt \\\\ A=P(1+rt) \\\\ \dfrac{A}{1+rt}=\dfrac{P(1+rt)}{1+rt} \\\\ \dfrac{A}{1+rt}=P \\\\ P=\dfrac{A}{1+rt} .\end{array}