Question
Jack bought the same number of markers and staplers. The total cost of 3 markers and 1 stapler was $22. The total cost of 1 marker and 3 staplers was $18. He spent a total of $90. How many markers did Jack buy?
4 m

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Jack bought the same number of markers and staplers. The total cost of 3 markers and 1 stapler was $22. The total cost of 1 marker and 3 staplers was $18. He spent a total of $90. How many markers did Jack buy?