Question

which expression represents the phrase \twice the difference of a number and 5\?
○ 2(x - 5)
○ - 5 + 2x
○ 2(x + 5)
○ 2+2(x - 5)

Explanation:

Step1: Define the number

Let the number be $x$.

Step2: Find the difference

The difference of the number $x$ and 5 is $x - 5$.

Step3: Double the difference

Twice the difference means multiplying $x - 5$ by 2, so the expression is $2(x - 5)$.

Answer:

A. $2(x - 5)$