Предмет: Математика, автор: pikapikapicu51

Какое выражение равно выражению a + (−b + c − d)

Выберите один ответ:

a - b - c + d

a - b + c - d

a + b - c - d

a - b + c + d

​

Ответы

Автор ответа: Tam3rlaN
1

Так как стоит плюс, а не минус, то все знаки остаются неизменными а+(-б+с-д)=а-б+с-д

Автор ответа: binamaksimchuk
2

Ответ:

Пошаговое объяснение:

Открой скобки.Перед ними стоит знак +,значит знаки в скобках при раскрывании не меняются:

a + (−b + c − d) = a - b + c - d

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