Math Planet
Math Planet: The Elimination Method for Solving Linear Systems
Provides examples and a video lesson that illustrates how to use the elimination method to solve linear equations.
CK-12 Foundation
Ck 12: Algebra: Consistent and Inconsistent Linear Systems
[Free Registration/Login may be required to access all resource tools.] Identify a system as inconsistent, consistent, or dependent and determine how many solutions a system has.
Illustrative Mathematics
Illustrative Mathematics: 8.ee How Many Solutions?
Eighth graders are given a linear equation and instructed to find a second linear equation in order to make a system of equations that fits different criteria related to its possible solutions. Aligns with 8.EE.C.8.
CK-12 Foundation
Ck 12: Algebra: Comparing Methods for Solving Linear Systems
[Free Registration/Login may be required to access all resource tools.] Decide which method is the best one to use to solve a system of linear equations.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Sistemas De Ecuaciones Lineales
In Spanish. Learn the algebraic language to represent and solve systems of two linear equations with two unknowns.
Cuemath
Cuemath: Linear Equations in Two Variables
A comprehensive guide for learning all about linear equations in two variables with definitions, how to solve them, solved examples, and practice questions.
Oak Ridge National Laboratory
Ornl: 7 Gaussian Elimination on Band Matrices
This site gives an example of solving a system of equations with the use of Gaussian Elimination.
CK-12 Foundation
Ck 12: Algebra: Testing Solutions for Linear Inequalities
[Free Registration/Login may be required to access all resource tools.] Write and solve linear inequalities.
CK-12 Foundation
Ck 12: Algebra: Linear Inequalities in Two Variables
[Free Registration/Login may be required to access all resource tools.] Graph linear inequalities to find solutions.
Khan Academy
Khan Academy: Interpret Equations Graphically
Practice the connection between the graphical representation of equations and their algebraic solutions.
PBS
Pbs Learning Media: Meadows or Malls?
The lesson plan investigates how to use matrices to solve a complex linear programming problem. Educators can download printable version of the lesson plan in pdf format.
Free Math Help
Free Math Help: Systems of Linear Equations
The Algebra II session explores systems of linear equations. Students learn how to solve the problems algebraically and graphically.
Sophia Learning
Sophia: Equations for the Circle: Lesson 3
This lesson presents the standard form and the general form for the equation of a circle, and relates the two. It is 3 of 5 in the series titled "Equations for the Circle."
Sophia Learning
Sophia: Equations for the Circle: Lesson 5
This lesson presents the standard form and the general form for the equation of a circle, and relates the two. It is 5 of 5 in the series titled "Equations for the Circle."
Math Medics
S.o.s. Math: Gaussian Elimination
In this lesson, the Gaussian Elimination method is used to solve systems of linear equations. Provides several formulas and examples for understanding.
Texas A&M University
Wtamu Virtual Math Lab: Solving Systems of Linear Equations in Three Variables
This tutorial will show you how to solve a system of linear equations in three variables by using the elimination method. Complete with definitions, example problems with step-by-step solutions, and practice exercises for you to complete...
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Systems of Nonlinear Equations
Learn how to solve a system of nonlinear equations using the substitution and the elimination methods. This tutorial offers definitions, problems and step-by-step solutions, and practice exercises for you to complete and check.
Government of Alberta
Learn Alberta: Linear Systems Graph
Learn Alberta helps students visually explore various solutions of systems of two linear equations by allowing students to manipulate lines and view their numeric and graphic solution(s) or absence. The applet identifies the solutions as...
Illustrative Mathematics
Illustrative Mathematics: A rei.c.6: Find a System
The purpose of this task is to encourage learners to think critically about both the algebraic and graphical interpretation of systems of linear equations. Aligns with A-REI.C.6.
Texas Instruments
Texas Instruments: Solving Systems of Linear Equations by Elimination
Students will solve systems of linear equations by elimination.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Systems of Two Linear Equations in Two Unknowns
The tutorial examines systems of two linear equations in two unknowns. Students learn about the concepts through class notes, examples, and practice problems. Topics include elimination method, infinitely many solutions, and no...
National Council of Teachers of Mathematics
The Math Forum: Math Library Maple
This site from The Math Forum provides links to sites that relate to solving linear equations by using Maple and other techniques. This site contains on line text books for higer math courses.
Oswego City School District
Regents Exam Prep Center: Systems of Linear Inequalities
Solving a system of linear inequalities is shown to be as easy as solving a system of linear equations! An example is explained before students are given several problems to complete on their own. Complete explanations of these are...
CK-12 Foundation
Ck 12: Algebra: Comparing Equations of Parallel and Perpendicular Lines
[Free Registration/Login may be required to access all resource tools.] Use their slopes to determine if two lines are parallel or perpendicular.
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