Va roog ! Dau coroana !

a + b + c = 100
a + 3 = 2 * c => a = 2 * c - 3
b - 3 = c => b = c + 3
a + b + c = 100 => 2 * c - 3 + c + 3 + c = 100
4 * c = 100
c = 25
a = 2 * c - 3 = 2 * 25 - 3 = 50 - 3 = 47
b = c + 3 = 25 + 3 = 28