Question

пожалуйста помогите ​

Answer 1

Ответ:

$x - 3 \frac{5}{6} = 2 \frac{2}{3} \\ x = 2 \frac{4}{6} + 3 \frac{5}{6} \\ x = 5 \frac{10}{6} = 6 \frac{2}{3}$

$x \div 1 \frac{3}{7} = 4 \frac{3}{8} \\ x = \frac{35}{8} \times \frac{10}{7} = \frac{50}{8} = 6 \frac{1}{4}$

$1 \frac{1}{4} x = 7 \frac{3}{4} \\ x = \frac{31}{4} \times \frac{4}{5} = \frac{31}{5} = 6 \frac{1}{5}$