Cara’s brother is 4 years old, she is 8 when will she be triple the age of him?

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Cara’s brother is 4 years old, she is 8 when will she be triple the age of him?

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    2021-10-13T22:46:25+00:00

    Let x be the number of years for the Cara to be triple of her brother’s age.

    Brother = 4 years old
    Cara = 8 years old

    8 + x = 3(4 + x)
    8 + x = 12 + 3x
    3x – x = -4
    2x = -4
    x = -2

    She was triple his age 2 years ago but she will never to triple his age in the future.

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