SOLUTION: Twenty years ago, Mike was four times as old as John,. Four years from now , Mike will be twice as old as John.

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Question 1127858: Twenty years ago, Mike was four times as old as John,. Four years from now , Mike will be twice as old as John.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Twenty years ago, Mike was four times as old as John,. Four years from now, Mike will be twice as old as John.
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Well, that's not very interesting.
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If you want to find their ages, you should say, "Find their ages."
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M-20 = 4*(J-20)
M+4 = 2*(J+4)
etc