\[\left\{ \begin{matrix} 4x + 20 > 0 \\ 3x - 6 \leq 0\ \ \\ \end{matrix} \right.\ \]
\[\left\{ \begin{matrix} 4x > - 20 \\ 3x \leq 6\ \ \ \ \ \ \\ \end{matrix} \right.\ \]
\[\left\{ \begin{matrix} x > - 5 \\ x \leq 2\ \ \ \ \\ \end{matrix} \right.\ \]
\[- 5 < x \leq 2.\]
\[Ответ:\ - 5 < x \leq 2.\]