SOLUTION: Tom and Tim ages add up to 21 years. In 3 years Tom will be twice tim's age. How old are they now?

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Question 880809: Tom and Tim ages add up to 21 years. In 3 years Tom will be twice tim's age. How old are they now?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

Let x represent tom's age and y Tim's age    

x + y = 21  0r  y = 21-x

In 3 years...

x + 3 = 2[(21-x)+3]

x + 3 = 2[24-x]

x + 3 = 48 - 2x

  3x = 45

   x = 15, Tom's age.  Tim is 6  21-15

CHECKING our answer***In 3 years

  18 = 2•9

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