\[\left\{ \begin{matrix}
3x - 5 > 7x + 3 \\
7x - 8 > 4x + 7 \\
\end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix}
- 4x > 8 \\
3x > 15\ \\
\end{matrix} \right.\ \text{\ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix}
x < - 2 \\
x > 5\ \ \ \\
\end{matrix} \right.\ \]

\[Ответ:нет\ решения.\]