1) 4(2X+3)-3(X+1)<-12
8x+12-3x-3<-12
5x+9<-12
5x<-21
x<-4.2
x∈(-∞;-4.2)
2)5x+2<8x-4-3x
5x+2<5x-4
2<-4
утверждение ложно
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
1) 4(2X+3)-3(X+1)<-12
8x+12-3x-3<-12
5x+9<-12
5x<-21
x<-4.2
x∈(-∞;-4.2)
2)5x+2<8x-4-3x
5x+2<5x-4
2<-4
утверждение ложно