2. Решите уравнения: а) x + \frac{4}{11} = \frac{9}{11}; б) \frac{18}{23} - (x - \frac{2}{23}) = \frac{14}{23}; в) \frac{4}{16} + (x - \frac{7}{16}) = \frac{11}{16}.

2. Решите уравнения:

а) $$x + \frac{4}{11} = \frac{9}{11}$$

$$x = \frac{9}{11} - \frac{4}{11}$$

$$x = \frac{9-4}{11}$$

$$x = \frac{5}{11}$$

б) $$\frac{18}{23} - (x - \frac{2}{23}) = \frac{14}{23}$$

$$x - \frac{2}{23} = \frac{18}{23} - \frac{14}{23}$$

$$x - \frac{2}{23} = \frac{4}{23}$$

$$x = \frac{4}{23} + \frac{2}{23}$$

$$x = \frac{6}{23}$$

в) $$\frac{4}{16} + (x - \frac{7}{16}) = \frac{11}{16}$$

$$x - \frac{7}{16} = \frac{11}{16} - \frac{4}{16}$$

$$x - \frac{7}{16} = \frac{7}{16}$$

$$x = \frac{7}{16} + \frac{7}{16}$$

$$x = \frac{14}{16} = \frac{7}{8}$$

Ответ: а) $$\frac{5}{11}$$, б) $$\frac{6}{23}$$, в) $$\frac{7}{8}$$