Question
Billy bought equal number of boxes of silver balls and packets of blue balls. 3 boxes and 2 packets contain 21 balls. 2 boxes and 3 packets contain 19 balls. There were 88 balls altogether. How many boxes of silver balls did Billy buy?
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Billy bought equal number of boxes of silver balls and packets of blue balls. 3 boxes and 2 packets contain 21 balls. 2 boxes and 3 packets contain 19 balls. There were 88 balls altogether. How many boxes of silver balls did Billy buy?