SOLUTION: Age of father is '4x' when his son is 'x' years old. When son is '5x' what will be the age of father?

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Question 610714: Age of father is '4x' when his son is 'x' years old. When son is '5x' what will be the age of father?
Answer by flame8855(424) About Me  (Show Source):
You can put this solution on YOUR website!
x+4x = 5x
4x+4x= = 8x