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rezolvati sistemele de inecuatie.
x-7<2
x-3<-5


Răspuns :

x-7<2
x<2+7
x<9
x=(0,1,2,3,4,5,6,7,8)

x-3<-5
x<-5+3
x<-2
x-7<2; x<9
x-3<-5; x<-2;
x∈(-∞,9)intersectat cu {-∞,-2}
x∈(-∞,-2)