SOLUTION: Henry´s dad is 18 years older than him. His dad will be twice as old as Henry after 10 years. What is the present age of Henry?

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Question 1104928: Henry´s dad is 18 years older than him. His dad will be twice as old as Henry after 10 years. What is the present age of Henry?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
Let h be Henry; and h+18 be his dad. Then:
2(h+10)=h+18+10
2h+20=h+28
h=8
Henry is 8
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