Question
Mark had 87 coins more than Ethan at first. After Mark had given away 135 of his coins to Carl, Ethan had four times as many coins as Mark. Find the number of coins Mark had at first.
4 m

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Mark had 87 coins more than Ethan at first. After Mark had given away 135 of his coins to Carl, Ethan had four times as many coins as Mark. Find the number of coins Mark had at first.