Answer
$x \leq -\frac{16}{3}$
Work Step by Step
Collect constants on the right side of the inequality by subtracting $5$ from each side of the inequality:
$\frac{3x}{2} \leq -8$
Multiply each side by $2$ to get rid of the fraction:
$3x \leq -16$
Divide each side by $3$ to solve for $x$:
$x \leq -\frac{16}{3}$