Răspuns :
B:45-612:6-864:8=406
B:45-102-108=406
B:45-102=406+108
B:45-102=514
B:45=514+102
B:45=616
B=616x45
B=27720
verificare
27720:45-102-108=406
616-102-108=406
B:45-102-108=406
B:45-102=406+108
B:45-102=514
B:45=514+102
B:45=616
B=616x45
B=27720
verificare
27720:45-102-108=406
616-102-108=406