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23 July, 16:01

Salma, Felipe, and Eric sent a total of 82 text messages during the weekend. Felipe sent 7 more messages than Salma. Eric sent 3 times as many messages as Salma. How many messages did they each send?

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  1. 23 July, 17:58
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    Eric and Felipe's messages are described in terms of Salmas's, so:

    Salma's = x 3x+x+x+7=82

    Eric's = 3x 5x+7=82

    Felipe's = x+7 5x=75

    x=15

    Salma wrote 15 messages, Eric wrote 45, and Felipe wrote 22. 15+45+22=82
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