Question
Japheth bought the same number of files and notebooks. The total cost of 6 files and 1 notebook was $23. The total cost of 1 file and 6 notebooks was $33. He spent a total of $48. How many files did Japheth buy?
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Japheth bought the same number of files and notebooks. The total cost of 6 files and 1 notebook was $23. The total cost of 1 file and 6 notebooks was $33. He spent a total of $48. How many files did Japheth buy?