Lydia bought $3n$ packets of stickers. Each packet contained 8 stickers. She gave 25 stickers to her friends and divided the rest of the stickers equally into 7 boxes. How many stickers were there in each box?
Give your answer in terms of $n$ in the simplest form. Ans: ___

1. Find the total number of stickers Lydia bought

$\text{Total stickers} = 3n \times 8 = 24n$

2. Find the number of remaining stickers

$\text{Remaining stickers} = 24n - 25$

3. Find the number of stickers in each box

$\text{Stickers per box} = \frac{24n - 25}{7}$