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Ajutorrrr dau coroana!

Ajutorrrr Dau Coroana class=

Răspuns :

a+67+c=163
(a+b)-c=>a=(b+c)+37
c+67+c=163
2c+67=163
2c=96
c=48
a+b=c+67
a+b=48+67
a+b=115
b+48+37+b=115
2b+85=114
2b=30
b=30:2
b=15
a+15=115
a=100