Question
Xuan spent 4 days making paper boats for her cousins. Each day, she managed to make 7 more paper boats than the day before. She made a total of 58 paper boats. How many paper boats did she make on the first day?
2 m

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Xuan spent 4 days making paper boats for her cousins. Each day, she managed to make 7 more paper boats than the day before. She made a total of 58 paper boats. How many paper boats did she make on the first day?