Question 1150446
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Let Corey is x years old now.

Then Catherine's age is (x+58) years.


9 years ago . . . 


    (x+58)-9 = 3*(x-9)


Simplify and solve


    x + 49 = 3x - 27

    49 + 27 = 3x - x

    76      = 2x

     x      = 76/2 = 38.


<U>ANSWER</U>.  Corey now is 38 years old.
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