Răspuns :
a+b+c=9906
a+b=6239
b+c=4298
⇒c=[a+b+c]-[a+b]
⇒c=9906-6239
⇒c=3667;
⇒b=[b+c]-c
⇒b=4298-3667
⇒b=631;
⇒a=[a+b]-b
⇒a=6239-631
⇒a=5608;
a+b=6239
b+c=4298
⇒c=[a+b+c]-[a+b]
⇒c=9906-6239
⇒c=3667;
⇒b=[b+c]-c
⇒b=4298-3667
⇒b=631;
⇒a=[a+b]-b
⇒a=6239-631
⇒a=5608;
a+b+c=9906
a+b=6239
6239+c=9906
c=9906-6239
c=3667
b+c=4298
b+3667=4298
b=4298-3667
b=631
a+631+3667=9906
a=9906-(631+3667)
a=9906-4928
a=4978
a+b=6239
6239+c=9906
c=9906-6239
c=3667
b+c=4298
b+3667=4298
b=4298-3667
b=631
a+631+3667=9906
a=9906-(631+3667)
a=9906-4928
a=4978