Question

1247. Решите уравнение. 2) 2/3:(2/9 + 1/3)+1/2=13/14​

Answer 1

Ответ:

4

Пошаговое объяснение:

2/3 / (2/9 + 1/3х) + 1/2 = 13/14

2/3 / (2/9 + 1/3х) = 13/14 - 1/2

2/3 / (2/9 + 1/3х) = 13/14 - 7/14

2/3 / (2/9 + 1/3х) = 6/14

2/9 + 1/3х = 2/3 : 6/14

2/9 + 1/3х = 2/3 * 14/6

2/9 + 1/3х = 1/3 * 14/3

2/9 + 1/3х = 14/9

2/9 + 1/3х = 1 5/9

1/3х = 1 5/9 - 2/9

1/3х = 1 3/9

1/3х = 12/9

х = 12/9 : 1/3

х = 12/9 * 3/1

х = 12/3 * 1/1

х = 12/3

х = 4