Răspuns :
a+b+c=9289
a+b=5001
b+c=6099
a+2b+c=11.100
scadem suma celor trei(a+b+c=9289)
b=1811
a=5001-1811=3190
c=6099-1811=4288
a+b+c=9289
a+b=5001
b+c=6099
5001+c=9289
c=9289-5001
c=4288
b+4288=6009
b=6009-4288
b=1721
a+1721=5001
a=5001-1721
a=3280