Решение:
\[ 2x = 22 + 5y \]
\[ x = \frac{22 + 5y}{2} \]
\[ 10\left(\frac{22 + 5y}{2}\right) + 7y = -2 \]
\[ 5(22 + 5y) + 7y = -2 \]
\[ 110 + 25y + 7y = -2 \]
\[ 32y = -112 \]
\[ y = -\frac{112}{32} = -\frac{7}{2} = -3.5 \]
Ответ: (2.25; -3.5)