\[\left\{ \begin{matrix} 5x + 4y = 2\ \ \ \\ 5x - 3y = - 3 \\ \end{matrix} \right.\ - \ \ \ \ \ \]
\[\ \left\{ \begin{matrix} 7y = 5\ \ \ \ \ \ \ \ \ \ \\ x = \frac{- 3 + 3y}{5} \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix} y = \frac{5}{7}\text{\ \ \ \ \ \ \ } \\ x = - \frac{6}{35} \\ \end{matrix} \right.\ \]
\[Ответ:\left( - \frac{6}{35};\ \frac{5}{7} \right).\]