A system of equations is two or more equations that contain the same variables. A solutions to a system of equations are the point where the lines intersect. There are four methods to solving systems of equations: graphing, substitution, elimination and matrices. Solving systems of equations is an important concept that shows up first in Algebra I, but is built upon in upper-level math. 

Lesson 7.1: The AC Method of Factoring

Lesson 7.2: Solving Systems of Equations by Graphing

Lesson 7.3: Solving Systems of Equations by Substitution

Lesson 7.4: Solving Systems of Equations by Elimination Day 1

Lesson 7.5: Solving Systems of Equations by Elimination Day 2

Lesson 7.6: Applications of Systems of Equations

Lesson 7.7: Systems of Inequalities

Lesson 7.8: Applications of Systems of Inequalities 

Unit 7 Review

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