Question

Tina's age is 4 years less than 3 times her niece's age. If her niece's age is x years, which of the following expressions best shows Tina's age? x − 4 4x − 3 3x − 4 4 − 3x

Answer 1

3x - 4

Explanation:

Use these representations: niece's age: x

We triple x and then subract 4 years from the result, obtaining:

Tina's age: 3x - 4

Answer 2

3x - 4

Explanation:

As Tina's age is 3 into x ( 3 x x= 3x)but 4years less (-4)

Therefore Tina's age is 3x - 4