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10 August, 03:09

Aaron is 5 years younger than

Roy. Four years later, Roy will be

twice as old as Aaron. Find their

present ages

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Answers (1)
  1. 10 August, 06:46
    0
    Roy is 6 years old and Aaron is 1 year old.

    Step-by-step explanation:

    A is Aaron's age,

    R is roy's age,

    A = R - 5

    R + 4 = 2 (A+4)

    We can distribute first,

    R + 4 = 2A + 8

    Subtract 4 from each side,

    R = 2A + 4

    Since A = R - 5, you can substitute in R - 5 for A in the equation,

    R = 2 (R-5) + 4

    Distribute,

    R = 2R - 10 + 4

    Since - 10 + 4 = - 6, we can do this,

    R = 2R - 6

    Subtract R from both sides,

    0 = R - 6

    Add 6 to both sides and you have part of your answer;

    R = 6

    Since A = R - 5,

    A = 6 - 5

    A = 1, so Aaron's age is 1.
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