So Sidak is now 14+4 = 18 years old.(Four years ago) Her brother was thrice her age.
Four years ago, her brother was (3)(14) = 42 years old So her brother is 42+4 = 44 years old.What will be their total age in n years?
Sidak will be 18+n years old Her brother will be 44+n years old Edwin
In n years, sum of their ages will be: