Răspuns :
a+b+c=756;
a+b=527 ;
527+c=756;
c=756-527;
c=229;
b+c=418;
a+418=756;
a=756-418;
a=338;
338+b+229=756;
567+b=756;
b=756-567;
b=189;
verificare -338+189+229=756
a+b=527 ;
527+c=756;
c=756-527;
c=229;
b+c=418;
a+418=756;
a=756-418;
a=338;
338+b+229=756;
567+b=756;
b=756-567;
b=189;
verificare -338+189+229=756
525+c=756
c=756-527=229
c=229
b+229=418
b=418-229=189
b=189
a+189=527
a=527-187=338
a=338
338+189+229=756
c=756-527=229
c=229
b+229=418
b=418-229=189
b=189
a+189=527
a=527-187=338
a=338
338+189+229=756