SOLUTION: today was laura's birthday. she turned 24. laura is twice as old as joe was when laura was as old as joe now. how old is joe now?

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Question 867421: today was laura's birthday. she turned 24. laura is twice as old as joe was when laura was as old as joe now. how old is joe now?
Answer by Edwin McCravy(20055) About Me  (Show Source):
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today was laura's birthday. she turned 24. laura is twice as old as joe was when laura was as old as joe now. how old is joe now?

Laura's present age = 24
Joe's present age = J

Laura who is now 24, is twice as old as Joe was x years ago.

24 = 2(J - x)

Also, x years ago, Laura was as old as Joe's present age

24-x = J

So the system of equations to solve is

system%2824=2%28J-x%29%2C24-x=J%29

Edwin