Brandon is 25 and Keven is 18.
To find this answer, you must first subtract 7 from 43. This will give you 36. By doing this, you're taking away that 7 year difference temporarily.
Next, divide 36 by 2, since there are 2 people. This gives you 18, which is how old Keven is.
Lastly, add 7 to 18, giving you 25. Thus meaning Brandon is 25.
I hope this helps!
