Question

Which would the phrase twice the difference of a number and five look like as a variable expression

Answer 1

We have to represent the phrase "twice the difference of a number and five" as variable expression.

A variable expression is a mathematical phrase that can contain ordinary numbers, variables (like x or y) with operations as addition, subtraction ,multiplication and division.

Let the number be 'x'.

Twice of a number = $2 \times x = 2x$

The difference of '2x' and 5 = 2x - 5

Therefore, the variable expression representing the given phrase is "2x-5".