Răspuns :

Byancatrascaid
a+b+c=8789
a+b=4666
4666+c=8789
c=8789-4666
c=4123
b+c=6365
b+4123=6365
b=6365-4123
b=2242
a+b=4666
a+4123=4666
a=4666-4123
a=643
Justfasyid
a+b=4666 => a+b+c=4666+c=8789 => c=8789-4666=4123

b+c=6365=> a+b+c=a+6365=8789=> a=8789-6365=2422

4123+b+2422=8789=> b=8789-4123-2422=> b=2242

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