3. Решите уравнения: 1) \(x-7\frac{11}{11}=2\frac{11}{11}\); 2) \(3\frac{7}{17}-(x+1\frac{4}{17})=1\frac{9}{17}\).

1. \(x-7\frac{11}{11}=2\frac{11}{11}\), поэтому \(x=2\frac{11}{11}+7\frac{11}{11}=3+8=11\).
2. \(3\frac{7}{17}-(x+1\frac{4}{17})=1\frac{9}{17}\).
   \(x+1\frac{4}{17}=3\frac{7}{17}-1\frac{9}{17}=1\frac{15}{17}\).
   \(x=1\frac{15}{17}-1\frac{4}{17}=\frac{11}{17}\).

Ответ: 1) \(x=11\); 2) \(x=\frac{11}{17}\).