# Chapter 1.1 Language of Algebra Review

### Expressions, Equations, Order of Operations

# Variables and Constants

A variable is a symbol or letter that represents a numerical value.

A constant is a number or symbol on its own; it's not multiplied or divided to a variable.

# types of numbers

- Real
- Rational
- Irrational
- Integers
- Whole Numbers
- Natural Numbers
- Imaginary