Question

Write a variable expression to represent the phrase. (Lesson 1.1)

The difference between a number and 2.75

Short answer

The variable expression will be: x – 2.75; where x is the number.

Step-by-step solution

Step 1: Definition of an Algebraic Expression

An algebraic expression (or) avariable expression is a combination of terms by the operations such as addition, subtraction, multiplication, division, etc

Example of Algebraic Expression

A variable is a letter whose value is unknown to us.

For example, y is our variable in the expression, 10y + 63. A constant is a term that has a definite value. Here 10y is the variable term and 63 is a constant term.

Step 3: The difference of a number and 2.75 

The phrase sum means addition and difference means subtraction.

Assume the unknown number to be x and x can be any integer, then the difference of a number and 2.75 will be x – 2.75.