Mathematics, 05.05.2020 01:59 kelseydavid69

A bag contains purple marbles and green marbles, 31 in total. The number of purple marbles is 1 less than 3 times the number of green marbles. How many purple marbles are there?

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A bag contains purple marbles and green marbles, 31 in total. The number of purple marbles is 1 less...