**Twelve less than thrice a number**

**Which of the following translates the phrase above into a mathematical expression?**

3x - 12

12 - 3x

12x - 2

3x + 12

*Correct Answer : A*

We need to form a mathematical expression from the given word problem.

Let the unknown number be x.

Thrice a number is three times = 3x

Twelve less than thrice a number = 3x-12

Thus, the mathematical expression from the word problem is 3x-12

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