Question

Devaughn is 6 years older than Sydney. The sum of their ages is 80. What is Sydney's age?

Answer 1

37 and 43

Explanation:

There are some ways to do this, but this is what I like to do. First, since there are 2 people, I divide 80 by 2, which is 40. Now I add 3 to one person and subtract 3 from one person, because the age difference is 6 years, and there are two people (if you divide them you get 3). Now you get the answer; 37 and 43.