Alex is 4 years older than Damien.

Question

Damien is half Kelli's age.
All their ages add up to 36.
What are their ages?

Answer 1

a = d+4
d = k/2, so k = 2d
a+d+k = 36

d+4 + d + 2d = 36

now it's easy to find d, and then a and k.

Answer 2

LOL this is a good problem lol