Question
Gabriel and Charlie shared some marbles. Gabriel took 511 of the marbles. After Gabriel lost 12 marbles, Charlie had thrice as many marbles as Gabriel. How many marbles did Charlie have in the end?
4 m

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Gabriel and Charlie shared some marbles. Gabriel took 511 of the marbles. After Gabriel lost 12 marbles, Charlie had thrice as many marbles as Gabriel. How many marbles did Charlie have in the end?