Question
There was an equal number of purple and gold marbles in a box at first. After 19 gold marbles were taken out and 30 purple marbles were added into the box, there was 18 as many gold marbles as purple marbles. Find the number of gold marbles in the box at first.
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There was an equal number of purple and gold marbles in a box at first. After 19 gold marbles were taken out and 30 purple marbles were added into the box, there was 18 as many gold marbles as purple marbles. Find the number of gold marbles in the box at first.