I think it'd be n+47. You age once each year- so no matter how old he is, adding 47 would give you how old he will be in 47 years.
n+47
Answer:
n + 47
Step-by-step explanation:
Let n = Brian's age now.
In 47 years, he'll be 47 years older than he is now.
In 47 years, Brian will by n + 47 years old.
Answer: n + 47