Решите двойное неравенство: -1<=5-3x<=1.

\[- 1 \leq 5 - 3x \leq 1\]

\[- 6 \leq - 3x \leq - 4\]

\[2 \geq x \geq \frac{4}{3}\]

\[Ответ:\ x \in \left\lbrack 1\frac{1}{3};2 \right\rbrack.\]