Предмет: Математика, автор: shahriyorchikozb8ts

раскройте скобки: a+(b-(c-d)); a-(b-(c-d))

Ответы

Автор ответа: nurgalievaalina1287

Ответ:

1)a-(b-(c-d))=a-(b-c+d)=a-b+c-d

2)a+(b-(c-d))=a+(b-c+d)=a+b-c+d

Пошаговое объяснение:

это правильно я проверила

shahriyorchikozb8ts: спасибо

nurgalievaalina1287: пожалуйста

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Dinner is the fourth meal of the day. The usual time is about 7 o'clock, and all the members of the family sit down together.
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This is the order of meals among English families, But the greater part of the people in the towns, and nearly all country-people, have dinner in the middle of the day instead of lunch. They have tea a little later — between 5 and 6 o'clock, and then in the evening, before going to bed, they have supper.
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раскройте скобки: a+(b-(c-d)); a-(b-(c-d))​

Ответы

раскройте скобки: a+(b-(c-d)); a-(b-(c-d))