1) 5(u+2)+14 < 6-u 2)4 (u+3)< 3(u +2) 3)3(2u+1) > 5(u-1). Created by fbdnmg. matematika-ru

1) 5(u+2)+14 < 6-u 2)4 (u+3)< 3(u +2) 3)3(2u+1)

July 2022 2 5 Report

1) 5(u+2)+14 < 6-u
2)4 (u+3)< 3(u +2)
3)3(2u+1) > 5(u-1)

ElMouse 1)5u+10+14<6-u    2)4u+12<3u+6    3)6u+3>5u-5
   5u+u<6-24 4u-3u<6-12 6u-5u>-5-3
    6u<-18 u<-6    u>-8
      u<-18:6
   u<-3

26 votes Thanks 45

parus77

Verified answer

1) 5(u+2)+14 < 6-u
5u+10+14<6-u
5u+u<6-10-14
6u<-18
u<-3
Ответ: (-∞;-3)
2) 4 (u+3)< 3(u +2)
4u+12<3u+6
4u-3u<6-12
u<-6
Ответ: (-∞;-6)
3) 3(2u+1) > 5(u-1)
6u+3>5u-5
6u-5u>-5-3
u>-8
Ответ: (-8;+∞)

9 votes Thanks 17

Answers & Comments

Verified answer

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