Question

3/7x+2/3x-4/21x, якщо x=2 4/19

Answer 1

Ответ:

2

Пошаговое объяснение:

3/7х + 2/3х - 4/21х = 9/21х + 14/21х - 4/21х = 19/21х

х = 2 4/19

19/21х = 19/21 * 2 4/19 = 19/21 * 42/19 =

1/1 * 2/1 = 2/1 = 2