Răspuns:
a+b+c=886
b=220+a
b+c=754
a+754=886
a=886-754
a=132
b=220+132
b=352
352+c=754
c=754-352
c=402
Verificare:
132+352+402=886✔️
352+402=754✔️
Un an nou fericit! La multi ani!