\[\left\{ \begin{matrix} 5x + 3y = 4 \\ 2x - y = - 5 \\ \end{matrix} \right.\ \]
\[\left\{ \begin{matrix} y = 2x + 5\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\ 5x + 3(2x + 5) = 4 \\ \end{matrix} \right.\ \]
\[5x + 6x + 15 = 4\]
\[11x = - 11\]
\[x = - 1;\ \]
\[y = 2 \cdot ( - 1) + 5 = 3.\]
\[Ответ:( - 1;3).\]