\[\left\{ \begin{matrix} 0,6x > 3\ \ \ \ \ \ \ \ \ \\ - 10x > - 70 \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ }\left\{ \begin{matrix} x > 5 \\ x < 7 \\ \end{matrix} \right.\ \]
\[Ответ:5 < x < 7.\ \]