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