Question
Dana had thrice as many buttons as pens at first. She removed 7 buttons and 3 pens each time. In the end, there were 17 buttons and 1 pen left. How many buttons and pens did Dana have at first?
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Dana had thrice as many buttons as pens at first. She removed 7 buttons and 3 pens each time. In the end, there were 17 buttons and 1 pen left. How many buttons and pens did Dana have at first?