Răspuns:
5./x+1/<1.3
-3/10<x+1<3/10
-3/10<10x/10+10/10<3/10 /-10/10
-13/10<10x/10<-7/10
-13<10x<-7 /:10
-1.3<x<-0.7
x€Z
rezulta ca A={-1;0} a)
6. de la -3 pana la 6 sunt 9°C c)
