SOLUTION: Irene is 18 and Fred 58. How many years ago was Fred 5 times as old as Irene was then?

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Question 756352: Irene is 18 and Fred 58. How many years ago was Fred 5 times as old as Irene was then?
Answer by stanbon(75887) About Me  (Show Source):
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Irene is 18 and Fred 58. How many years ago was Fred 5 times as old as Irene was then?
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Equation:
58-x = 5(18-x)
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58-x = 90 - 5x
4x = 32
x = 8 years
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Ans: 8 years ago when fred was 50 and Irene was 10.
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Cheers,
Stan H.