Question

Which expression represents the phrase 'twice the difference of a number and 5'?

1) 2(x-5)
2) 2 + (2(x-5))
3) 2 + (x-5)
4) 2x - 5
5) 2(x+5)

Answer 1

The expression that represents the phrase 'twice the difference of a number and 5' is 2(x-5).

Step-by-step explanation:

The expression that represents the phrase 'twice the difference of a number and 5' is 1) 2(x-5).

To understand why, let's break down the phrase step by step:

1. The difference of a number and 5 is represented by (x - 5).
2. Multiplying this difference by 2 gives us 2(x - 5).

So, the correct expression is 2(x - 5), option 1.