Home > Pre-Algebra > Variable Expressions > Write Variable Expressions

## Write Variable Expressions

#### Introduction

#### Terms

## Examples

A number increased by 3

Figure out the operation that is being referred to

Because we see the phrase increased by, we know this expression will use Addition

Let x = the unknown number

When we put this together, we end up with $x + 3$

10 plus a number

Figure out the operation that is being referred to

Because we see the word plus, we know this expression will use Addition

Let x = the unknown number

When we put this together, we end up with $x + 10$

7 more than a number

Figure out the operation that is being referred to

Because we see the phrase more than, we know this expression will use Addition

Let x = the unknown number

When we put this together, we end up with $x + 7$

3 more than a number

Figure out the operation that is being referred to

Because we see the phrase more than, we know this expression will use Addition

Let x = the unknown number

When we put this together, we end up with $x + 3$