\[\left\{ \begin{matrix} 0,5x < 2\ \ \ \ \\ - 3x > - 9 \\ \end{matrix} \right.\ \text{\ \ \ \ }\left\{ \begin{matrix} x < 4 \\ x \leq 3 \\ \end{matrix} \right.\ \]
\[Ответ:\ x \in ( - \infty;3\rbrack.\]