\[\left\{ \begin{matrix} 4x - 13 \geq 3x - 10 \\ 11 - 4x \leq 12 - 3x \\ \end{matrix} \right.\ \]
\[\left\{ \begin{matrix} x \geq 3\ \ \ \\ - x \leq 1 \\ \end{matrix} \right.\ \text{\ \ \ \ }\]
\[\left\{ \begin{matrix} x \geq 3\text{\ \ \ } \\ x \geq - 1 \\ \end{matrix} \right.\ \]
\[x \geq 3.\]
\[Ответ:x \geq 3.\]