Пж помогите быстрее Срочно Решите уравнения номер 605 2/7 х = 1 9х = 1 1 5/8х = 1 1/2х =...

Решите задачу:

$\frac{2}{7} x = 1 \\ x = 1 \div \frac{2}{7} = \frac{7}{2}$
$9x = 1 \\ x = \frac{1}{9}$
$1 \frac{5}{8} x = 1 \\ \frac{13}{8}x = 1 \\ x = \frac{8}{13}$
$\frac{1}{2} x = 1 \\ x = 2$
$\frac{7}{15} x = 1 \\ x = \frac{15}{7}$
$3 \frac{2}{5} x = 1 \\ \frac{17}{5}x = 1 \\ x = \frac{5}{17}$
$100x = 1 \\ x = \frac{1}{100}$
$\frac{2}{13} x = 1 \\ x = \frac{13}{2}$