Answer
$$ \frac{A-P}{Pr}, \ \ 5.0.$$
Work Step by Step
To solve the given equation for $t$, we move out the term $P$ and then divide both sides by $Pr$ as follows $$ A = P + Prt\Longrightarrow Prt=A-P\Longrightarrow t=\frac{A-P}{Pr} .$$ Now, by substitution, we have $$ t=\frac{A-P}{Pr}=\frac{2025-1500}{0.07(1500)}=5.0.$$
