I would love to understand how to solve this problem: Wendi brought home 4 chickens.  After a few days, she brought home enough additional chickens to double the number of chickens she owned.  Then, a neighbor's dog ate one of her chickens.  Finally, Wendi found an additional 4 less than ten chickens and brought them home too.  After this, how many chickens does Wendi have?
Can you explain?