If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old.

You already know Dokkio is an AI-powered assistant to organize & manage your digital files & messages. Very soon, Dokkio will support Outlook as well as One Drive. Check it out today!

REMEMBER - When multiplication and division occur together, work from left to right. This means you MAY divide BEFORE you multiply. The same goes for addition and subtraction!

In order to solve for a variable, it must be by itself on one side of the equation. That means that you will have to move any numbers and operations that are on the same side of the equation as the variable to the other side. BUT you CAN'T just move them from one side to the other. For a number to change sides, you must perform the inverse, or opposite, operation on BOTH sides of the equation.

Example:

Use this helpful online tool to check your work when simplifying expressions.

## Comments (1)

## Riley said

at 4:39 pm on Feb 1, 2018

I understand this lesson

You don't have permission to comment on this page.