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age problem (math)

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Nila is now x years old. 3 years ago, her brother ricky was twice as old as she. Write ricky's age 10 years from now in terms of x.

(with solution pls... thanks...)

  • age problem (math) -

    Three years ago:
    Nila's age --- x-3
    Ricky's age --- 2(x-3)

    present:
    Nila: --- x
    Ricky -- 2(x-3) + 3 = 2x -6 + 3 = 2x - 3

    in 10 years:
    Nila --- x+10
    ricky ---- 2x-3+10 = 2x + 7

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