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A bag contains purple marbles and blue marbles ,27 in total . The number of purple marbles is 3 less than 4 times the number of blue marbles . How many purple marbles are there
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5 votes
A bag contains purple marbles and blue marbles ,27 in total . The number of purple marbles is 3 less than 4 times the number of blue marbles . How many purple marbles are there

User PriorityMark
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5 votes


p+b=27\\p=4b-3\\\\4b-3+b=27\\5b=30\\b=6\\\\p+6=27\\p=21

21

User Niconoe
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