\[\left\{ \begin{matrix} 0,3 \cdot (x + y) = 22,2\ \ \ \ |\ :0,3 \\ 0,4 \cdot (x - y) = 6,4\ \ \ \ \ \ \ |\ :0,4 \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix} x + y = 74 \\ x - y = 16 \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ }\]
\[\left\{ \begin{matrix} x = 74 - y\ \ \ \ \ \ \ \ \ \\ 74 - y - y = 16 \\ \end{matrix} \right.\ \]
\[\left\{ \begin{matrix} x = 74 - y \\ - 2y = - 58 \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix} y = 29\ \ \ \ \ \ \ \ \ \\ x = 74 - 29 \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix} y = 29 \\ x = 45 \\ \end{matrix} \right.\ \]
\[Ответ:(45;29).\]