Ответ:
Пошаговое объяснение:
-6а + 6b = -6(a - b)
-3/7 - 9/14 = -6/14 - 9/14 = -15/14 = -1. 1/14
-5/9 - (-3/4) = -20/36 + 27/36 = 7/36
3. 11/12 - (-4. 4/9) = 3. 33/36 + 4. 16/36 = 7. 49/36 = 8. 13/36
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Ответ:
Пошаговое объяснение:
-6а + 6b = -6(a - b)
-3/7 - 9/14 = -6/14 - 9/14 = -15/14 = -1. 1/14
-5/9 - (-3/4) = -20/36 + 27/36 = 7/36
3. 11/12 - (-4. 4/9) = 3. 33/36 + 4. 16/36 = 7. 49/36 = 8. 13/36