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