Question
Yesterday, Riordan had 67 as many red as gold balls. He sold 20 of his gold balls today. Now, he has twice as many red as gold balls. How many balls did he have altogether yesterday?
4 m

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Yesterday, Riordan had 67 as many red as gold balls. He sold 20 of his gold balls today. Now, he has twice as many red as gold balls. How many balls did he have altogether yesterday?