9 5 3 7 5. Решить уравнение a) 8-x=46) x-6 = 10 10 6 11 6

5. Решим уравнение:

1. $$8\frac{9}{10} - x = 4\frac{5}{6}$$

   $$x = 8\frac{9}{10} - 4\frac{5}{6}$$

   $$x = 8 - 4 + \frac{9}{10} - \frac{5}{6}$$

   $$x = 4 + \frac{9 \times 3}{10 \times 3} - \frac{5 \times 5}{6 \times 5}$$

   $$x = 4 + \frac{27}{30} - \frac{25}{30}$$

   $$x = 4 + \frac{2}{30}$$

   $$x = 4\frac{1}{15}$$

2. $$x - 6\frac{3}{11} = 10\frac{7}{6}$$

   $$x = 10\frac{7}{6} + 6\frac{3}{11}$$

   $$x = 10 + 6 + \frac{7}{6} + \frac{3}{11}$$

   $$x = 16 + \frac{7 \times 11}{6 \times 11} + \frac{3 \times 6}{11 \times 6}$$

   $$x = 16 + \frac{77}{66} + \frac{18}{66}$$

   $$x = 16 + \frac{95}{66}$$

   $$x = 16 + 1\frac{29}{66}$$

   $$x = 17\frac{29}{66}$$

Ответ: a) $$x = 4\frac{1}{15}$$; б) $$x = 17\frac{29}{66}$$