Question

помогите пожалуйста

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Answer 1

Ответ:

Пошаговое объяснение:

1)

2. 2/11х - 5/16 = 1. 3/4

2. 2/11х = 1. 3/4 + 5/16

2. 2/11х = 1. 12/16 + 5/16

2. 2/11х = 1. 17/16

24/11х = 33/16

х = 33/16 : 24/11

х = 33/16 * 11/24

х = 11/16 * 11/8

х = 121/128

2)

4. 2/9х + 3. 5/14 = 6. 11/21

4. 2/9х = 6. 11/21 - 3. 5/14

4. 2/9х = 6. 22/42 - 3. 15/42

38/9х = 3. 7/42

38/9х = 3. 1/6

38/9х = 19/6

х = 19/6 : 38/9

х = 19/6 * 9/38

х = 1/2 * 3/2

х = 3/4

3)

11/18 - 14/27х = 5/12

14/27х = 11/18 - 5/12

14/27х = 22/36 - 15/36

14/27х = 7/36

х = 7/36 : 14/27

х = 7/36 * 27/14

х = 1/4 * 3/2

х = 3/8