Пошаговое объяснение:
(7b - 30a²)/(5a + 6a) = (7b - 30a²)/11a
a = 7; b = -15
(7b - 30a²)/11a = (7*(-15) - 30*7²)/(11 * 7) =
(-105 - 30*49)/77 = (-105 - 1470)/77 =
(-1575)/77 = -20 35/77
Ответ:
-20 35/77
Решение:
(7b - 30a²) /( 5a + 6a) = (7b - 30a²) / 11a
a = 7; b = - 15
(7b - 30a²) / 11a = (7*(-15) - 30*7²) / (11 * 7) =
(-105 - 30*49) / 77 = (-105 - 1470) / 77 =
(-1575) / 77 = -20 35/77
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Пошаговое объяснение:
(7b - 30a²)/(5a + 6a) = (7b - 30a²)/11a
a = 7; b = -15
(7b - 30a²)/11a = (7*(-15) - 30*7²)/(11 * 7) =
(-105 - 30*49)/77 = (-105 - 1470)/77 =
(-1575)/77 = -20 35/77
Ответ:
-20 35/77
Решение:
(7b - 30a²) /( 5a + 6a) = (7b - 30a²) / 11a
a = 7; b = - 15
(7b - 30a²) / 11a = (7*(-15) - 30*7²) / (11 * 7) =
(-105 - 30*49) / 77 = (-105 - 1470) / 77 =
(-1575) / 77 = -20 35/77