Question: Gabriel is 3 years younger than Frank. The current total of their ages right now is 17. What is Frank's age? Think carefully first, then make a decision:
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Let X be Frank's age. So Gabriel is X - 3 years old. The total of their ages is X + (X - 3) = 17 years old. 2X - 3 = 17. 2X = 20. X = 10. So Frank is X = 10 years old. So the answer is 10.
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