Предмет: Математика, автор: cumtumama33

З усіма діями
№1. Спростіть вирази:

а) 23а + 1,8b – 32a - 2,4b; б) -6(х - 3) + 2(х - 5); в) 0,3х·(-7у); г) -7х·(-10у).(3 бала)

№2. Розв’язати рівняння:

а) 5х+75=10; б) 4(х+1)-7х=5 в) (3 бала)

Ответы

Автор ответа: maslenikovaviktoria1
1

Ответ:

это ответ, всё правильно

Приложения:
Автор ответа: tatsach
1

Ответ:

Пошаговое объяснение:

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