# Algebra 1 - 3rd Edition

## Chapter 8: Systems of Equations

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### 8.1 Solving Systems of Equations by Graphing and Tables

http://www.regentsprep.org/regents/math/algebra/ae3/GrSys.htm
NEW This page demonstrates how to solving systems of equations using graphing.

https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-systems-topic/cc-8th-systems-graphically/v/graphings-systems-of-equations
NEW Video lecture teaching about graphing to solve systems of equations.

http://www.mathworksheetsgo.com/downloads/algebra/systems-of-linear-equations/solve-systems-of-equations-by-graphing.pdf
NEW Worksheet with quick presentation of solving equations by graphing followed by practice problems and solutions.

http://www.algebra.com/algebra/homework/Linear-equations/solve-by-graphing.solver
NEW Online solver for pair of linear equations by the graphical method.

### 8.2 Special Linear Systems of Equations

http://www.purplemath.com/modules/systlin2.htm
NEW Tutorial for using graphing to solve systems of equations, including the special cases discussed in the text.

### 8.3 Solving Systems of Equations by Substitution

http://www.coolmath.com/algebra/Algebra1/08System2x2/03_substitution.htm
This page shows how to solve systems of equations using substitution.

http://www.regentsprep.org/Regents/math/ALGEBRA/AE3/AlgSys.htm
NEW This site explains solving systems of equations by substitution by solving an example in detail.

http://www.mathworksheetsgo.com/downloads/algebra/systems-of-linear-equations/solve-systems-of-equations-by-substitution.pdf
NEW Worksheet with quick presentation of solving equations by substitution followed by practice problems and answers.

### 8.4 Solving Systems of Equations by Addition or Subtraction

http://cstl.syr.edu/fipse/Algebra/Unit5/equiadd.htm
This page explains how to solve systems of equations using addition or subtraction.

http://www.regentsprep.org/Regents/math/ALGEBRA/AE3/AlgSysAdd.htm
NEW This page gives example solutions of problems for solving systems of equations using addition or subtraction.

http://www.mathworksheetsgo.com/downloads/algebra/systems-of-linear-equations/solve-systems-of-equations-by-elimination.pdf
NEW Worksheet with quick presentation of solving equations by adding or subtracting, followed by practice problems and answers.

### 8.5 Solving Systems of Equations by Multiplication

http://www.algebra-online.com/solving-systems-equations-elimination-multiplication-1.htm
This site explains how to solve systems of equations by using multiplication with elimination.

http://www.mathworksheetsgo.com/downloads/algebra/systems-of-linear-equations/solve-systems-of-equations-by-elimination.pdf
NEW Worksheet with quick presentation of solving equations by adding or subtracting after multiplication, followed by practice problems and answers.