Răspuns :
a+b+c=603
a=2b
2b+b+c=603
3b+c=603
b+c=201
a+201=603
a=603-201
a=402
2b=402
402:2
b=201
201+c=201
c=201-201
c=0
a+b+c =603
a=2b
2b +b +c =603
3b +c =603
b +c = 603÷3
b +c =201
a+201 =603
a=402
b=201
c =0
a=2b
2b +b +c =603
3b +c =603
b +c = 603÷3
b +c =201
a+201 =603
a=402
b=201
c =0