Question
Ben had 5 times as many books as Peter. After Ben and Peter donated 128 books and 4 books away respectively, they were left with an equal number of books. How many books did Ben have at first?
4 m

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Ben had 5 times as many books as Peter. After Ben and Peter donated 128 books and 4 books away respectively, they were left with an equal number of books. How many books did Ben have at first?