\[\left\{ \begin{matrix}
3x + 2y = 7 \\
x - 2y = - 3 \\
\end{matrix} \right.\ \text{\ \ \ \ \ }\]
\[\left\{ \begin{matrix}
x = 2y - 3\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\
3 \cdot (2y - 3) + 2y = 7 \\
\end{matrix} \right.\ \text{\ \ \ \ \ }\]
\[\left\{ \begin{matrix}
x = 2y - 3\ \ \ \ \ \ \ \ \ \ \\
6y - 9 + 2y = 7 \\
\end{matrix} \right.\ \]
\[\left\{ \begin{matrix}
x = 2y - 3 \\
8y = 16\ \ \ \ \ \\
\end{matrix} \right.\ \text{\ \ \ \ \ \ }\]
\[\left\{ \begin{matrix}
y = 2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \\
x = 2 \cdot 2 - 3 \\
\end{matrix} \right.\ \text{\ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix}
y = 2 \\
x = 1 \\
\end{matrix} \right.\ \]
\[Проверка:\ \]
\[\left\{ \begin{matrix}
3 \cdot 1 + 2 \cdot 2 = 7 \\
1 - 2 \cdot 2 = - 3\ \ \\
\end{matrix} \right.\ \text{\ \ \ \ \ }\]
\[\left\{ \begin{matrix}
7 = 7\ \ \ \ \ \ \ \\
- 3 = - 3 \\
\end{matrix} \right.\ \Longrightarrow верно.\]
\[Ответ:(1;2).\]