Răspuns :
ab+ac = 310
a(b+c) = 310
b+c = 10 → a(b+c) = 310
a•10 = 310
a = 310:10
a = 31.
* Sign Of The Times *
a(b+c) = 310
b+c = 10 → a(b+c) = 310
a•10 = 310
a = 310:10
a = 31.
* Sign Of The Times *