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8 July, 13:51

Keiko, aldo, and henry sent a total of 50 text messages during the weekend. aldo sent 2 times as many messages as henry. keiko sent 10 fewer messages than henry. how many messages did they each send?

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  1. 8 July, 16:18
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    K + a + h = 50

    a = 2h

    k = h - 10

    (h - 10) + 2h + h = 50

    4h - 10 = 50

    4h = 50 + 10

    4h = 60

    h = 60/4

    h = 15 < = = = Henry sent 15

    a = 2h

    a = 2 (15)

    a = 30 < = = = Aldo sent 30

    k = h - 10

    k = 15 - 10

    k = 5 < = = = Keiko sent 5
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