Выполнить действие. (8-4 3/11) + 2 8/11 11 1/7 - (5 4/7+3 6/7) Решить уравнения (х-1 8/9) + 3 7/9 = 4 4/9

(8 - 4 3/11) + 2 8/11 = 6 5/11

1) 8 - 4 3/11 = 7 11/11 - 4 3/11 = 3 8/11

2) 3 8/11 + 2 8/11 = 5 16/11 = 6 5/11

11 1/7 - (5 4/7 + 3 6/7) = 1 5/7

1) 5 4/7 + 3 6/7 = 8 10/7 = 9 3/7

2) 11 1/7 - 9 3/7 = 10 8/7 - 9 3/7 = 1 5/7

(х - 1 8/9) + 3 7/9 = 4 4/9

х - 1 8/9 = 4 4/9 - 3 7/9

х - 1 8/9 = 3 13/9 - 3 7/9

х - 1 8/9 = 6/9

х = 6/9 + 1 8/9

х = 1 14/9

х = 2 5/9

Ответ: х = 2 5/9