Question
Luis bought the same number of markers and pens. The total cost of 5 markers and 1 pen was $17. The total cost of 1 marker and 5 pens was $13. He spent a total of $20. How many markers did Luis buy?
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Luis bought the same number of markers and pens. The total cost of 5 markers and 1 pen was $17. The total cost of 1 marker and 5 pens was $13. He spent a total of $20. How many markers did Luis buy?