Final answer:
Amy is 54 years old.
Step-by-step explanation:
To find Amy's age, we can set up the equation: (Amy's age / 3) - 6 = 12. Let's solve for Amy's age:
- Add 6 to both sides of the equation: (Amy's age / 3) - 6 + 6 = 12 + 6
- Simplify: (Amy's age / 3) = 18
- To isolate Amy's age, multiply both sides of the equation by 3: (Amy's age / 3) * 3 = 18 * 3
- Simplify: Amy's age = 54
Amy is 54 years old.