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21 September, 23:12

Jacksons age was 2/5 of age he will be 20 years from now now 7 years ago. How old is Jackson now?

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  1. 21 September, 23:28
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    Since we do not know jacksons age leave that as x.

    We need to set up an equation to find out Jackson's age since the equation says 2/5 of his age and she will be (so x) 20 years from now so add

    x - 7 = (2/5) (x + 20)

    5 (x - 7) = 5 * (2/5) (x + 20) (multiply with 5 to both sides)

    5x - 35 = 2x + 40

    5x - 2x = 40 + 35

    3x = 75

    x = 25

    Jackson=25 years old
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