Question

997 help me please тяжело

Answer 1

Ответ:

Пошаговое объяснение:

 1/6

-------------- - 3/8 = 1/40

1/4х - 1/3

1/6 : (1/4х - 1/3) = 1/40 + 3/8

1/6 : (1/4х - 1/3) = 1/40 + 15/40

1/6 : (1/4х - 1/3) = 16/40

1/6 : (1/4х - 1/3) = 2/5

1/4х - 1/3 = 1/6 : 2/5

1/4х - 1/3 = 1/6 * 5/2

1/4х - 1/3 = 5/12

1/4х = 5/12 + 1/3

1/4х = 5/12 + 4/12

1/4х = 9/12

1/4х = 3/4

х = 3/4 : 1/4

х = 3/4 * 4/1

х = 3