Răspuns :
A+B+C=8289
A+B=4001
B+C=5099 INLOCUIM:
4001+C=8289
C=8289-4001
C=4288
B+4288=5099
B=5099-4288
B=811
A+811=4001
A=4001-811
A=3190
A+B=4001
B+C=5099 INLOCUIM:
4001+C=8289
C=8289-4001
C=4288
B+4288=5099
B=5099-4288
B=811
A+811=4001
A=4001-811
A=3190
a+b+c=8289 4001+c=8289 c=8289-4001 c=4288
a+b=4001
b+c=5099 b=5099-4288 b=811
a+5099=8289 a=8289-5099 a=3190
proba 4288+811+3190=8289
a+b=4001
b+c=5099 b=5099-4288 b=811
a+5099=8289 a=8289-5099 a=3190
proba 4288+811+3190=8289