√3) 8 4/5 - 5 2/5 x = 4 2/3;

$$8\frac{4}{5}-5\frac{2}{5}x=4\frac{2}{3}$$

$$5\frac{2}{5}x = 8\frac{4}{5}-4\frac{2}{3}$$

$$5\frac{2}{5}x = 8\frac{12}{15}-4\frac{10}{15}$$

$$5\frac{2}{5}x = 4\frac{2}{15}$$

$$\frac{27}{5}x = \frac{62}{15}$$

$$x = \frac{62}{15} : \frac{27}{5}$$

$$x = \frac{62}{15} \cdot \frac{5}{27}$$

$$x = \frac{62}{3} \cdot \frac{1}{27}$$

$$x = \frac{62}{81}$$

Ответ: x = 62/81