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29 May, 17:38

Cody is twice as old as Evan and seven years ago the sum of their age was 7. find the age of each boy now

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  1. 29 May, 19:29
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    Cody: 2x

    Evan: x

    x-7 (Evan’s age 7 years ago (-7))

    2x-7 (Cody’s age 7 years ago (-7))

    So you add both

    x-7+2x-7

    And that should equal 7 (seven years ago the sum of their age was 7)

    x-7+2x-7=7

    3x-14=7

    3x=21

    x=7

    Evan (x) = 7

    Cody (2x) = 7 times 2

    Cody = 14
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