Răspuns:
Explicație pas cu pas:
a) x+5<2 x<-3
b) 2x-3<5 x<4
c) 7x-8 ≤ 6 x≤2
d) -3x+8<2 -3x<-6 x>2
e)-2x-10 ≥ 14 -2x≥24 x≤-12
2.A={-2,0,1,2}
a) 5x+1≤ 11 5x≤10 x≤2 toate elementele lui A pot fi solutii
b) -3x+7≥ 10 -3x≥3 x≤-1 S={-2,-1}
3
a) x ≥-3 si x<2 S={-3,-2,-1,0,1}
b) x ≤ 1 si x>-2 S={-1,01}
c)x ≤ 4 si x ≥ -2 S={-2,-1,0,1,2,3,4}