Question

Eddie is 7 years older than Brian.  If Brian is x years old, then how old was Eddie 11 years ago?

Answer 1

Eddie is 7 years older than Brian, who is x years old. To find Eddie's age 11 years ago, subtract 11 from his current age (x + 7), which results in x - 4 years old.

Step-by-step explanation:

If Brian is x years old, Eddie is x + 7 years old since Eddie is 7 years older than Brian. To find out how old Eddie was 11 years ago, we need to subtract 11 years from his current age. So, we take Eddie's current age, x + 7, and subtract 11 to get Eddie's age 11 years ago which would be x + 7 - 11 or x - 4.

Therefore, if Brian is currently x years old, 11 years ago Eddie was x - 4 years old.

Answer 2

Knowing that Eddie is 7 years older than Brian we can create such equation
x+7-11= Eddies age 11 years ago - the result
7 is because Eddie is 7 years older
-11 because of 11 years ago