5. Решите уравнение: a) 1 1/3 - x = 2 5/6; б) -2 2/7 + x = -4 1/14.

a) \(1\frac{1}{3} - x = 2\frac{5}{6}\) \(\frac{4}{3} - x = \frac{17}{6}\) \(-x = \frac{17}{6} - \frac{4}{3}\) \(-x = \frac{17}{6} - \frac{8}{6}\) \(-x = \frac{9}{6}\) \(-x = \frac{3}{2}\) \(x = -\frac{3}{2}\) \(x = -1\frac{1}{2}\) б) \(-2\frac{2}{7} + x = -4\frac{1}{14}\) \(-\frac{16}{7} + x = -\frac{57}{14}\) \(x = -\frac{57}{14} + \frac{16}{7}\) \(x = -\frac{57}{14} + \frac{32}{14}\) \(x = -\frac{25}{14}\) \(x = -1\frac{11}{14}\)