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Lê Quốc Trần Anh Coordinator

01/07/2018 at 03:37
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What is the value of x + y if the sequence 2, 6, 10, ..., x, y, 26 is an arithmetic sequence? 


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    Nguyễn Mạnh Hùng 01/07/2018 at 08:27

    We have: 2,6,10,14,18,22,26,...

    => x = 18

    y = 22

    => x + y = 18 + 22 = 40

    Lê Quốc Trần Anh selected this answer.

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