\[\left\{ \begin{matrix} - x \leq 10 \\ \frac{x}{3} \leq - 2 \\ \end{matrix} \right.\ \]
\[\left\{ \begin{matrix} x \geq - 10 \\ x \leq - 6\ \ \ \\ \end{matrix} \right.\ \]
\[Решение:\lbrack - 10;\ - 6\rbrack.\]