SOLUTION: Danielle is 17 years old. She is 3 years older than twice Zack’s age. What is Zack’s age?

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Question 707637: Danielle is 17 years old. She is 3 years older than twice Zack’s age. What is Zack’s age?
Answer by vheroli(126) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be Zack's age:
17=2x+3
17-3=2x
14=2x
14/2=2x/2
7=x
Therefore:
Zack's age=7