Write the expression that represents the phrase,

"two times the difference of a number and 17."

Use x as the variable.

2 (x-17).

Step-by-step explanation:

The given phrase is "two times the difference of a number and 17."

We need to find the expression for given phrase.

Let x be the unknown variable.

Difference is denoted by "-" symbol.

Time is denoted by "*" symbol.

Difference of a number and 17 = x-17

Two times the difference of a number and 17 = 2 * (x-17) = 2 (x-17)

Therefore, the required expression is 2 (x-17).

2x + 17