Question

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Answer 1

Ответ:

Пошаговое решение во вложении

Answer 2

Ответ:

Пошаговое объяснение:

407.

2. 11/15х + 1. 3/5х - 14/15х =

2. 11/15х + 1. 9/15х - 14/15х =

3. 20/15х - 14/15х = 2. 6/15х = 2. 2/5х

х = 5

2. 2/5 * 5 = 12/5 * 5 = 60/5 = 12

х = 5/17

2. 2/5 * 5/17 = 12/5 * 5/17 = 12/17

х = 2. 1/17

2. 2/5 * 2. 1/17 = 12/5 * 35/17 = 12/1 * 7/17 = 84/17 = 4. 16/17

х = 4,5

2. 2/5 * 4,5 = 12/5 * 4,5 =

2,4 * 4,5 = 6