Question

помогите пожалуйста

Answer 1

$7.7 \\ x = 7 \frac{7}{10} - 3 \frac{1}{5} = 4 \frac{5}{10} = 4 \frac{1}{2}$
$x = 4 \frac{1}{2} \div 1 \frac{5}{6} = \frac{9}{2} \div \frac{11}{6} = \\ \frac{9}{2} \times \frac{6}{11} = \frac{27}{11} = 2 \frac{5}{11}$
Ответ:d g