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