Question
Ethan had 4 times as many books as Ryan. After Ethan and Ryan donated 123 books and 6 books away respectively, they were left with an equal number of books. How many books did Ethan have at first?
4 m

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Ethan had 4 times as many books as Ryan. After Ethan and Ryan donated 123 books and 6 books away respectively, they were left with an equal number of books. How many books did Ethan have at first?