Решите уравнения (7/9x+2 5/9):5/9=8 1/10

Пошаговое объяснение:

(7/9х + 2. 5/9) : 5/9 = 8. 1/10

7/9х + 2. 5/9 = 81/10 * 5/9

7/9х + 2. 5/9 = 9/2 * 1/1

7/9х + 2. 5/9 = 9/2

7/9х + 2. 5/9 = 4. 1/2

7/9x = 4. 1/2 - 2. 5/9

7/9х = 4. 9/18 - 2. 10/18

7/9х = 3. 27/18 - 2. 10/18

7/9х = 1. 17/18

х = 1. 17/18 : 7/9

х = 35/18 * 9/7

х = 5/2 * 1/1

х = 5/2

х = 2. 1/2