Решение:
- \( 5 \frac{6}{7} - x = 3 \frac{2}{7} \)
- \( x = 5 \frac{6}{7} - 3 \frac{2}{7} \)
- \( x = (5 - 3) + (\frac{6}{7} - \frac{2}{7}) \)
- \( x = 2 + \frac{4}{7} = 2 \frac{4}{7} \)
- \( y + 4 \frac{8}{11} = 10 \frac{7}{11} \)
- \( y = 10 \frac{7}{11} - 4 \frac{8}{11} \)
- \( y = 9 \frac{18}{11} - 4 \frac{8}{11} \) (преобразовали 10 \( \frac{7}{11} \) в \( 9 \frac{18}{11} \))
- \( y = (9 - 4) + (\frac{18}{11} - \frac{8}{11}) \)
- \( y = 5 + \frac{10}{11} = 5 \frac{10}{11} \)
Ответ: \( x = 2 \frac{4}{7} \); \( y = 5 \frac{10}{11} \).