Resturile pot fi 0,2,4,6,8,10,12,14.
x:43=15rest y,unde y€{0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42}
x=43•15+y;
Inlocuind pe rand obtinem valorile pe care le poate lua x;x€{645,647,649,651,653,655,657,659,661,663,665,667,669,671,673,675,677,679,681,683,685,687}
