Question
Eva had 38 more marbles than Risa at first. Risa gave 15 of her marbles to Eva. Eva now has 3 times as many marbles as Risa. How many marbles did Risa have at first?
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Eva had 38 more marbles than Risa at first. Risa gave 15 of her marbles to Eva. Eva now has 3 times as many marbles as Risa. How many marbles did Risa have at first?