Пошаговое объяснение:
7. 5/9 : (3. 2/3 - 1. 7/8х) =
5. 1/3
3. 2/3 - 1. 7/8х = 7. 5/9 : 5. 1/3
3. 2/3 - 1. 7/8х = 68/9 : 16/3
3. 2/3 - 1. 7/8х = 68/9 * 3/16
3. 2/3 - 1. 7/8х = 17/3 * 1/4
3. 2/3 - 1. 7/8х = 17/12
3. 2/3 - 1. 7/8х = 1. 5/12
1. 7/8х = 3. 2/3 - 1. 5/12
1. 7/8х = 3. 8/12 - 1. 5/12
1. 7/8х = 2. 3/12
1. 7/8х = 2. 1/4
15/8х = 9/4
х = 9/4 : 15/8
х = 9/4 * 8/15
х = 3/1 * 2/5
х = 6/5
х = 1. 1/5
