Предмет: Математика, автор: Аноним

Розкрийте дужки:-(-6,2+a+b)-(a-b+10,9

Ответы

Автор ответа: MsKsusha29

1

Ответ:.............................

Пошаговое объяснение:

Приложения:

fifim: помилка

fifim: мінус загубили

fifim: вийде

fifim: -4,7-2а

MsKsusha29: Чтобы отнять от отрицательного числа отрицательное число нужно сложить модули этих чисел (модуль- число без знака перед ним) и дописать перед числом минус. Как бы да

MsKsusha29: То есть, когда мы отнимаем от -6,2 число -10,9 мы должны сначала сложить модули(6,2+10,9=17,1). Т.к. при сложении двух отрицательных чисел итог получается отрицательный, мы дописываем минус. Ответ: -17,1

fifim: наросійсткому нерозумію

fifim: ви розв'язали правильно але ви написали без - після дужки

fifim: - на - дає + буде 6,2

fifim: 6,2+(-10,9)=-4,7

Автор ответа: fifim

0

Отак і все пішло............

Приложения:

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