Please answer the following question by reasoning step-by-step.
Gabriel is 3 years younger than Frank. The current total of their ages right now is 17. What is Frank's age?

10
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.

.

Thus, the answer is 10