SOLUTION: Frank is 4 yrs. older than Bill. Five years ago Frank was twice as old as Bill. How old is Frank now?

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Question 230300: Frank is 4 yrs. older than Bill. Five years ago Frank was twice as old as Bill. How old is Frank now?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Frank is 4 yrs. older than Bill. Five years ago Frank was twice as old as Bill. How old is Frank now?
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NOW DATA:
Let Bill be "x" yrs old
Frank is x+4 yrs old
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5 Years Ago DATA:
Bill was x-5 yrs. old
Frank was x+4-5 = x-1 yrs old
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Equation:
x-1 = 2(x-5)
x-1 = 2x-10
x = 9 (Bill's age now)
x+4 = 13 (Franks age now)
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Cheers,
Stan H.