Detailed Instructions: You are given a math word problem and you are supposed to only use subtraction on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
Q: Context: Jerry had 9 action figures on a shelf in his room. Later he added 7 more action figures to the shelf. If he also has 10 books on the shelf 

 Question: How many more action figures than books were on his shelf?
A:
6