Question
Dylan gave 16 of his buttons to Pierre, 25 of his remaining buttons to Lee and 13 of the rest of his buttons to Vaidev. He then had 22 buttons left. How many buttons had he at first?
4 m

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Dylan gave 16 of his buttons to Pierre, 25 of his remaining buttons to Lee and 13 of the rest of his buttons to Vaidev. He then had 22 buttons left. How many buttons had he at first?