Answer
$r=-\frac{5}{3}$
Work Step by Step
We start with the given equation: $9-3r=14$
First, we subtract $9$ from both sides of the equation: $9-9-3r=14-9$
We combine like terms on both sides of the equation: $-3r=5$
Finally, we divide both sides of the equation by $-3$: $r=\frac{5}{-3}=-\frac{5}{3}$