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Daca numerele prime a,b,c verifica relatia a + 2b + 10c = 82, atunci suma lor este?? URGENT!!!!!!!!!!!!!!!

Răspuns :

a+2b+10c=82
numerele prime sunt:2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,51,s.a.m.d.
2+2*5+10*7=2+10+70=82
Deci, a=2 si b=5 si c=7.
a+b+c=2+5+7=14