a+b+c=64 ;a+b=36,b+c=47,a b c =?

Răspuns :

a+b+c=64
a=64-(b+c)
a=64-47
a=17
c=64-(a+b)
c=64-36
c=28
b=64-(a+c)
b=64-(17+28)
b=64-45
b=19