Answer
The solutions are $d=-5$ and $d=5$.
The graph is shown below.
Work Step by Step
The given equation is
$\Rightarrow |-3d|=15$
Write related linear equations.
$\Rightarrow -3d=15$ or $-3d=-15$
Divide each side by $-3$.
$\Rightarrow \frac{-3d}{-3}=\frac{15}{-3}$ or $ \frac{-3d}{-3}=\frac{15}{-3}$
Simplify.
$\Rightarrow d=-5$ or $d=5$
The solutions are $d=-5$ and $d=5$.
