Question
Brandon started with some marbles at the beginning of a game. At the end of the first round of the game, he lost 5 marbles to his friend Will but won 7 marbles from his friend Tim. At the end of the second round, he lost 6 marbles to Tim but won 9 marbles from Will. In the end, Brandon had 27 marbles. How many marbles did Brandon have at first before the start of the game?
4 m

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Brandon started with some marbles at the beginning of a game. At the end of the first round of the game, he lost 5 marbles to his friend Will but won 7 marbles from his friend Tim. At the end of the second round, he lost 6 marbles to Tim but won 9 marbles from Will. In the end, Brandon had 27 marbles. How many marbles did Brandon have at first before the start of the game?