\[\left\{ \begin{matrix}
7x - 2 < 4x + 7 \\
9x - 7 > 5x + 2 \\
\end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix}
3x < 9 \\
4x > 9 \\
\end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix}
x < 3\ \ \ \ \ \\
x > 2,25 \\
\end{matrix} \right.\ \]

\[Ответ:(2,25;3).\]