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