Question
Caden started with some marbles at the beginning of a game. At the end of the first round of the game, he lost 7 marbles to his friend Daniel but won 10 marbles from his friend Seth. At the end of the second round, he lost 9 marbles to Seth but won 8 marbles from Daniel. In the end, Caden had 27 marbles. How many marbles did Caden have at first before the start of the game?
4 m

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Caden started with some marbles at the beginning of a game. At the end of the first round of the game, he lost 7 marbles to his friend Daniel but won 10 marbles from his friend Seth. At the end of the second round, he lost 9 marbles to Seth but won 8 marbles from Daniel. In the end, Caden had 27 marbles. How many marbles did Caden have at first before the start of the game?