Пошаговое объяснение:
(b - 2. 3/11) + 5. 1/11 = 7
b - 2. 3/11 = 7 - 5. 1/11
b - 2. 3/11 = 6. 11/11 - 5. 1/11
b - 2. 3/11 = 1. 10/11
b = 1. 10/11 + 2. 3/11
b = 3. 13/11
b = 4. 2/11
Пошаговое объяснение:
(b - 2. 3/11) + 5. 1/11 = 7
b - 2. 3/11 = 7 - 5. 1/11
b - 2. 3/11 = 6. 11/11 - 5. 1/11
b - 2. 3/11 = 1. 10/11
b = 1. 10/11 + 2. 3/11
b = 3. 13/11
b = 4. 2/11