Предмет: Математика, автор: sdenisen815

помогите пж как его делать

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Ответы

Автор ответа: ludmilaksenija2005

1

Пошаговое объяснение:

-5/15 b+2/3 b= - 1/3 b+2/3 b= 1/3 b

Автор ответа: tatsach

1

Ответ:

Пошаговое объяснение:

-5/15b+2/3b=-5/15b+10/15b=5/15b=1/3b

sdenisen815: а -45x - x + 124x - 57x

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