To find a division equation that determines the number of books in the school library, we need to understand that if we have a total number of books (2,676) and we divide this total by the number of shelves (3), we can find out how many books are on each shelf.
Therefore, the correct division equation would be:
\[ 3 = \frac{2,676}{b} \]
This means that if you divide the total number of books (2,676) by the number of shelves (b), you get 3, which indicates that each shelf contains 3 books.
So, the correct response is: \[ 3 = 2,676 ÷ b \]