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: Rachel had to complete 8 pages of math homework. If she had to complete 3 more pages of math homework than reading homework 

 Question: How many pages did she have to complete in all?
[A]: 13


[Q]: Context: Allan brought 5 balloons and Jake brought 3 balloons to the park. 

 Question: How many more balloons did Allan have than Jake in the park?
[A]: 2


[Q]: Context: Rebecca wants to split a collection of eggs into groups of 20. Rebecca has 5 marbles and 12 eggs. 

 Question: How many more eggs does Rebecca have than marbles?
[A]:
7