Question: Explain how to solve this math problem: Arnold, Madeline, Camden, and Sarah painted 56 easter eggs. Arnold and Madeline painted the same number of eggs. Camden and Sarah painted a total of 30 eggs, but Camden painted 12 more than Sarah. How many more eggs did Camden paint than Arnold?
Answer: 
Arnold and Madeline painted 56 - 30 = 26 easter eggs.
Arnold and Madeline each painted 26/2 = 13 easter eggs.
Sarah painted (30 - 12)/2 = 18/2 = 9 easter eggs.
Camden painted 9 + 12 = 21 easter eggs.
Camden painted 21 - 13 = 8 eggs more than Arnold.