Предмет: Алгебра, автор: kall21

2.70 СРОЧНО!!!ПЛИЗ ПОМОГИТЕ!!!!

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Автор ответа: sofaberezhnaya

Ответ:

б) 2b-b+3b+10+3=4b+13

в) x-2x-8x+5y-y=-9x-2y

г) a-3a-7b-b+8b=-2a

д) a+a-a+2b-7b-4b=a-9b

е) -1+3c-5c+c+b+2b=-1+c+3b

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