Răspuns :
a+b+c=12/4
⇒a+b+c=3;
⇒a∈[1,2,3];
⇒b∈[0,1,2,3];
⇒c∈[0,1,2,3];
⇒numerele sunt 102,120,111,201,210,300;⇒6 numere naturale;
⇒a+b+c=3;
⇒a∈[1,2,3];
⇒b∈[0,1,2,3];
⇒c∈[0,1,2,3];
⇒numerele sunt 102,120,111,201,210,300;⇒6 numere naturale;