Reviewed and Approved

Why the Elimination Method Works

Resource ID#: 122939

Primary Type: Video/Audio/Animation

This document was generated on CPALMS -

This chapter presents a new look at the logic behind adding equations- the essential technique used when solving systems of equations by elimination.

General Information

Subject(s): Mathematics
Grade Level(s): 9, 10, 11, 12
Intended Audience: Students
Suggested Technology: Computers for Students, Internet Connection, Speakers/Headphones
Instructional Time: 11 Minute(s)
Keywords: Linear equations;, constant;, elimination method;, point of intersection;, two variables
Instructional Component Type(s): Video/Audio/Animation
Resource Collection: Secondary Math specific existing tutorials

Aligned Standards

Name Description
MAFS.912.A-REI.3.5: Prove that, given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions.
MAFS.912.A-REI.3.6: Solve systems of linear equations exactly and approximately (e.g., with graphs), focusing on pairs of linear equations in two variables.