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8 August, 06:24

Maggie's brother is five years younger than twice her age. The sum of their ages is twenty four. How old is Maggie?

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  1. 8 August, 09:56
    0
    Let m be Maggie's age. Then, her brother's age would be:

    2m - 5

    Their total is 24:

    m + (2m - 5) = 24

    3m = 29

    m = 29/3 = 9 2/3 years old

    It's a mixed number, so ...
  2. 8 August, 10:21
    0
    x=Maggie's age

    2x-3 = brother's age

    x+2x-3=24

    3x-3=24

    3x-3+3=24+3

    3x=27

    3x/3=27/3

    x=9
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