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