\[\left\{ \begin{matrix} 3 - 2x \geq 0 \\ 3x + 1 > 0 \\ \end{matrix} \right.\ \]
\[\left\{ \begin{matrix} - 2x \geq - 3 \\ 3x > - 1\ \ \ \\ \end{matrix} \right.\ \]
\[\left\{ \begin{matrix} x \leq 1,5\ \\ x > - \frac{1}{3} \\ \end{matrix} \right.\ \]
\[- \frac{1}{3} < x \leq 1,5.\]
\[Ответ:\ - \frac{1}{3} < x \leq 1,5.\]