Пошаговое объяснение:
6. 11/15 - (3. 13/15 + (-х) ) = 5. 2/15
6. 11/15 - (3. 13/15 - х) = 5. 2/15
3. 13/15 - х = 6. 11/15 - 5. 2/15
3. 13/15 - х = 1. 9/15
х = 3. 13/15 - 1. 9/15
х = 2. 4/15
Пошаговое объяснение:
6. 11/15 - (3. 13/15 + (-х) ) = 5. 2/15
6. 11/15 - (3. 13/15 - х) = 5. 2/15
3. 13/15 - х = 6. 11/15 - 5. 2/15
3. 13/15 - х = 1. 9/15
х = 3. 13/15 - 1. 9/15
х = 2. 4/15