a bookstore was packing books in small boxes and large boxes. Leonard used 2 small boxes and 1 large box to pack 52 books. Kevin used 3 small boxes and 2 large boxes to pack 92 books. Leonard need to pack another shelf of books, be used additional small and large boxes. He used a total of 8 small boxes and 5 large boxes. Enter the number of boxes that Leonard packed in the boxes.