Answer
$\{x|\frac{2}{3}\le x\le3\}$
See graph.
Work Step by Step
$-5\le 4-3x\le2$
$-9\le -3x\le-2$
$\frac{2}{3}\le x\le3$
thus $\{x|\frac{2}{3}\le x\le3\}$
See graph.
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