Question
A white carton has 4 times as many balls as a silver carton. Mark added 9 balls to the white carton and 9 balls to the silver carton. If there are 3 times as many balls in the white carton as the silver carton, what was the total number of balls in the two cartons after Mark added the balls?
3 m

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A white carton has 4 times as many balls as a silver carton. Mark added 9 balls to the white carton and 9 balls to the silver carton. If there are 3 times as many balls in the white carton as the silver carton, what was the total number of balls in the two cartons after Mark added the balls?