Question
There was an equal number of purple and red balls in a box at first. After 27 red balls were taken out and 27 purple balls were added into the box, there was 17 as many red balls as purple balls. Find the number of red balls in the box at first.
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There was an equal number of purple and red balls in a box at first. After 27 red balls were taken out and 27 purple balls were added into the box, there was 17 as many red balls as purple balls. Find the number of red balls in the box at first.