# How do you define a variable and write an expression for each phrase: the total of four times a number and twice the difference between the number and four?

##### 1 Answer

Mar 25, 2018

first phrase:

seconds phrase:

#### Explanation:

Let us define the variable 'the number' as

The first phrase, 'four times a number', is expressed as

The second phrase is harder, 'the difference between the number and 4' is simply our number subtract 4:

Hope this helps!