Предмет: Математика, автор: tunguspaevamiramgul

-(2,5х+2,4у)+(0,4у-1,5х)-1,7у-44у
Пожалуйста помогите я не могу это сделать там 50 баллов шестой класс

Ответы

Автор ответа: aliyevaleyla011

1

Ответ:

-2,5х - 2,4y + 0.4y - 1.5x - 1.7y -44y =

4x-44y

aliyevaleyla011: Если перед скобкой есть минус , то в скобке все числа меняют свои знаки на противоположные , если же перед скобкой плюс , то знаки внутри скобки не меняются

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