The workers in the binding workshop need to pack a batch of books and send them to the post office. Each package contains a certain number of books.For the first time, they received \frac{7}{12} of this batch of books. As a result, they packed 14 packages and there were 35 more books.They took all the remaining books, together with the leftover from the first time.The question is: How many books are there in this batch?
