Решите систему неравенств: 2x-6<0; 5x+20>=0.

\[\left\{ \begin{matrix} 2x - 6 < 0\ \ \ \\ 5x + 20 \geq 0 \\ \end{matrix}\ \right.\ \]

\[\left\{ \begin{matrix} 2x < 6\ \ \ \ \ \ \\ 5x \geq - 20 \\ \end{matrix} \right.\ \]

\[\left\{ \begin{matrix} x < 3\ \ \ \\ x \geq - 4 \\ \end{matrix} \right.\ \]

\[- 4 \leq x < 3.\]

\[Ответ:\ - 4 \leq x < 3.\]