Предмет: Алгебра, автор: Машка98

Помогите пожалуйста. Срочно надо!!!

1). Решить двойное неравенство двумя способами -1<3x+5<2

 

Ответы

Автор ответа: Аноним
0

-1<3x+5<2

Система:

{-1<3x+5

[3x+5<2

 

{x>-2

{x<-1

 

x∈(-2;-1)

 

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