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Danny has 75 marbles in red color and blue color. He found out number of red marbles is 15 less than twice of the blue marbles. What are the numbers of red and blue marbles does danny have?
12 years ago

Answers

Ms. Sue
red = 2b - 15

b + 2b - 15 = 75

3b = 90

b = 30

12 years ago

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