Question

помогите плиз Решите уравнение: 7- y/6=5/9; x/56=8/7.​

Answer 1

$7 - \frac{y}{6} = \frac{5}{9} \\ \frac{y}{6} = 7 - \frac{5}{9} \\ \frac{y}{6} =6 \frac{9}{9} - \frac{5}{9} \\ \frac{y}{6} =6 \frac{4}{9} \\ y = 6 \frac{4}{9} \times 6 \\ y = \frac{58 \times 6}{9} \\ y = \frac{58 \times 2}{3} \\ y = \frac{116}{3} \\ y = 38 \frac{2}{3}$

$\frac{x}{56} = \frac{8}{7} \\ x = \frac{56 \times 8}{7} \\ x = \frac{8 \times 8}{1} \\ x = 64$