SOLUTION: Mark is 28 years younger than his father, while the father is 8 times older than Mark. How old is Mark?

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Question 840058: Mark is 28 years younger than his father, while the father is 8 times older than Mark. How old is Mark?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
F = M + 28
F = 9*M