Question

Решите Уравнения И сделайте проверку 1/3х + 1/х = 4/15 1х/- 1/9х= 2/9

Answer 1

1/3х + 1/х = 4/15

5 + 15 = 4х

4х = 20

х = 20/4

х = 5

Проверка 1 / 3*5 + 1 / 5 = 1/15 + 1/5 = 1/15 + 3/15 = 4/15 ; 4/15 = 4/15.