Solving Two-Step Equations Page 1 of 4
Accompanying Resources: Boom Cards, Fun Activity, Assessment
Review: One-Step Equations
In order to understand how to solve a two-step equation, it's important that you first understand how to solve a one-step equation (check out the lesson if you need a refresher!). When solving an equation, the goal is to get the variable by itself. In a one-step equation, you use the inverse operation to do this.
Addition and subtraction are inverses - they can cancel out what the other one has done. Multiplication and division are also inverses - they can cancel each other out as well. Let's look at one quick example:
4 is being subtracted from the variable x. How do we get x by itself? To undo subtraction, we need to use the inverse of subtraction: addition. To cancel out the minus 4, we need to add 4 to both sides. Remember to always do the same thing to BOTH sides of the equation when solving so that you keep things balanced.
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