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12 August, 10:23

Eric's age is 8 and her mother is 42. In how many years time will the mother be 3 times as old as her son

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  1. 12 August, 13:26
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    9 years

    Step-by-step explanation:

    Let's call the amount of years x. We can write

    42 + x = 3 (8 + x)

    42 + x = 24 + 3x

    2x = 18

    x = 9
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