Question
At a shop, Alice paid $21 for 7 items: 4 notebooks and 3 staplers. The total cost of 4 notebooks is $3 more than the total cost of 3 staplers. How much did 1 notebook cost?
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At a shop, Alice paid $21 for 7 items: 4 notebooks and 3 staplers. The total cost of 4 notebooks is $3 more than the total cost of 3 staplers. How much did 1 notebook cost?