Question
Emma had some mochi balls at first. After she gave away 4 mochi balls to her sister and ate another 3 mochi balls, she went to buy another 61 mochi balls. In the end, she had four times as many mochi balls as before. How many mochi balls did iris have at first?
4 m

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Emma had some mochi balls at first. After she gave away 4 mochi balls to her sister and ate another 3 mochi balls, she went to buy another 61 mochi balls. In the end, she had four times as many mochi balls as before. How many mochi balls did iris have at first?