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28 July, 12:17

Maggie's brother is 3years younger than twice her age. The sum of their ages is 24. How old is Maggie?

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  1. 28 July, 12:41
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    B=bro's age

    m=maggie's age

    b=-3+2m

    m+b=24

    subsitute

    m-3+2m=24

    3m-3=24

    add 3 both sides

    3m=27

    divide by 3

    m=9

    maggie is 9 year old
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