Question

Пж помогите быстрее Срочно
Решите уравнения номер 605
2/7 х = 1
9х = 1
1 5/8х = 1
1/2х = 1
7/15х = 1
3 2/5х = 1
100х = 1
2/13 х = 1
Заранее спасибо!

Answer 1

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