Question
Tiffany had 82 more marbles than Shannon at first. Shannon gave 15 of her marbles to Tiffany. Tiffany now has 3 times as many marbles as Shannon. How many marbles did Shannon have at first?
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Tiffany had 82 more marbles than Shannon at first. Shannon gave 15 of her marbles to Tiffany. Tiffany now has 3 times as many marbles as Shannon. How many marbles did Shannon have at first?