Nathan's age can be described as 5 more than 3 times his son's age. If his son's age is represented by the variable "s", write the algebraic expression representing Nathan's age using "s".

s = son's age

3s + 5 = Nathan's age

To write the algebraic expression representing Nathan's age using "s," we need to understand the given information. It states that Nathan's age is 5 more than 3 times his son's age.

Let's break it down step by step:

1. Start with the son's age, which is represented by the variable "s."

2. Multiply the son's age by 3 since it says Nathan's age is "3 times" his son's age. This gives us 3s.

3. Add 5 to the result since Nathan's age is "5 more than 3 times" his son's age. This gives us 3s + 5.

Therefore, the algebraic expression representing Nathan's age using "s" is 3s + 5.