Expressions & Equations
Lesson Recap :
What are terms?
Expression vs. Equation
Importance
Summary
If you learn better with video :
What are terms?
A term can be a number, a variable, or a combination of both. They can also be either positive or negative.
Expressions vs. Equations
You may have heard of an expression, and you may have heard of an equation. These are two commonly mixed up phrases, so what is the difference between the two?
An expression can be a mix of constants (numbers) and variables with operations done onto them.
*Note : an expression can consist of one term
An equation "equates" two expressions to each other. Simply put, there is an equal sign in between.
What is the importance?
Why is it important to make a distinction between expressions and equations?
The important thing to know is that expressions eventually simplify to one value. Equations are a way to see if two different looking expressions equal the same value. Think of them as a fact checker, equations can be true or false.
Summary :
What are terms? - a single number or variable, numbers and variables multiplied together
Expressions vs. Equations - expressions consist of numbers and variables, equations set two expressions equal to each other
What is the importance? - expressions simplify to one value, equations can be true or false