Решите систему неравенств: 4x-3>=x+6; 5x+1>=6x-11.

\[\left\{ \begin{matrix} 4x - 3 \geq x + 6\ \ \ \ \ \\ 5x + 1 \geq 6x - 11 \\ \end{matrix} \right.\ \text{\ \ \ \ \ }\]

\[\left\{ \begin{matrix} 3x \geq 9 \\ x \leq 12 \\ \end{matrix} \right.\ \text{\ \ \ \ \ }\]

\[\left\{ \begin{matrix} x \geq 3\ \ \ \\ x \leq 12 \\ \end{matrix} \right.\ \]

\[Ответ:\lbrack 3;12\rbrack.\]