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5 June, 14:24

Max is 9 years older than John. In years, the sum of their ages will be 49. Find Max's present age

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  1. 5 June, 14:26
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    29

    Step-by-step explanation:

    Max's age = x

    John's age = y

    We know:

    x = y + 9 x + y = 49

    Using the system of two functions, we plug the first equation inside the other:

    (y + 9) + y = 49

    2y = 40

    y = 20

    Now let's substitute this value into one of the equations so to find x

    x = 20 + 9 = 29
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