KATE'S MATH LESSONS
  • Home
  • LESSONS
    • Pre-Algebra
    • Algebra 1
    • Geometry
    • Algebra 2
  • About
  • Contact
  • Blog
  • Shop
  • Courses
  • Home
  • LESSONS
    • Pre-Algebra
    • Algebra 1
    • Geometry
    • Algebra 2
  • About
  • Contact
  • Blog
  • Shop
  • Courses

Solving a System
with Elimination 
(with Multiplication)


​Elimination Method with Multiplication        Page 1 of 5
Accompanying Resources: Google/Microsoft Activity, Study Guide, Fun Activity, Boom Cards
Picture
Elimination Method Study Guide
Picture


​Review of the
​Elimination Method

If you're new to elimination, you may want to check out the Elimination Level 1 lesson first for some simpler problems.  This lesson shows how to "fix" one or both equations with multiplication to get a variable to cancel.

The goal with the elimination method is to get one of the variables to cancel out when you add the two equations together.  In the Level 1 lesson, either the x's or the y's canceled when we added the equations.

For example, if you add the two equations below the x terms will cancel because you have a positive 3x and a negative 3x.     
Cancel terms with addition/elimination method

In the system above, the x's cancel and we're left with an equation that's pretty easy to solve for y. (Check out the Level 1 Elimination Lesson to see an example.)  Unfortunately, this doesn't happen every time.  

​You might get a system that's a little more complicated.  Take a look at the system below. If we add the two equations, we still have both variables left. This is a problem we'll have to fix.
What do you do if the terms don't cancel when you're using the elimination method?
Kate's Math Lessons
Welcome to Kate's Math Lessons!  
Teachers,make sure to check out the study guides and activities.
Picture

​Go to the next page to see what to do when this happens.
Picture
 1      2      3      4       5
Want to try one of my digital math activities for free?  Click the link to grab the teacher version or student version.

Home

About

Privacy Policy

Lessons

Contact

Copyright © 2015 - 2021 Kate's Math Lessons