Question
Rachel had 35 more seashells than Cathy at first. After Rachel bought another 21 seashells, she had thrice as many seashells as Cathy. How many seashells did Rachel have at first?
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Rachel had 35 more seashells than Cathy at first. After Rachel bought another 21 seashells, she had thrice as many seashells as Cathy. How many seashells did Rachel have at first?