Question

Rezolvati in Z inecuatiile:
a) 2(x-1)<-6
b) 2(x+8) $\leq$ -10
c) 3+2(x+2)<5

Answer 1

a)2(x-1)<-6
x-1<-6/2
x-1<-3
x<-2

b)2(x+8)<=-10
x+8<=-10/2
x+8<=-5
x<=3

c)3+2(x+2)<5
2(x+2)<2
x+2<2/2
x+2<1
x<-1