Question
There was an equal number of purple and grey beads in a bag at first. After 19 grey beads were taken out and 41 purple beads were added into the bag, there was 15 as many grey beads as purple beads. Find the number of grey beads in the bag at first.
4 m

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There was an equal number of purple and grey beads in a bag at first. After 19 grey beads were taken out and 41 purple beads were added into the bag, there was 15 as many grey beads as purple beads. Find the number of grey beads in the bag at first.