SOLUTION: In 20 years, John will be 5 times as old as he is now. How old is he?

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Question 304772: In 20 years, John will be 5 times as old as he is now. How old is he?
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Let J = John's present age, then:
J+20 = 5J "In 20 years, John will be 5 times as old as he is now." Subtract J from both sides.
20 = 4J Divide both sides by 4.
J = 5 John is 5 years old now.