Question
Yesterday, Billy had 611 as many purple as brown marbles. He sold 24 of his brown marbles today. Now, he has twice as many purple as brown marbles. How many marbles did he have altogether yesterday?
4 m

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Yesterday, Billy had 611 as many purple as brown marbles. He sold 24 of his brown marbles today. Now, he has twice as many purple as brown marbles. How many marbles did he have altogether yesterday?