Question
A green carton has 5 times as many balls as a yellow carton. Pierre added 3 balls to the green carton and 3 balls to the yellow carton. If there are 4 times as many balls in the green carton as the yellow carton, what was the total number of balls in the two cartons before Pierre added the balls?
3 m

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A green carton has 5 times as many balls as a yellow carton. Pierre added 3 balls to the green carton and 3 balls to the yellow carton. If there are 4 times as many balls in the green carton as the yellow carton, what was the total number of balls in the two cartons before Pierre added the balls?