SOLUTION: Katy is x years old. Peter is 3 years older. Sue is double Katy’s age. Together, their ages add up to 83. How old is katy?

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Question 1182526: Katy is x years old. Peter is 3 years older. Sue is double Katy’s age. Together, their ages add up to 83. How old is katy?
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
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Write equation as you read the problem


    x + (x+3) + 2x= 83.


Simplify and solve


    4x + 3 = 83

    4x     = 83 - 3 = 80

     x              = 80/4 = 20.


ANSWER.  Katy is 20 years old.

Solved.