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Handout
CK-12 Foundation

Ck 12: Algebra: Linear Systems: Solve by Elimination Study Guide

For Students 9th - 10th Standards
This comprehensive study guide highlights the main terms and formulas needed to review linear systems, specifically solving by elimination. Examples are included.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Linear Systems With Multiplication

For Students 8th - 9th
[Free Registration/Login may be required to access all resource tools.] Solve linear systems using multiplication.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A rei.c.6: Find a System

For Teachers 9th - 10th
The purpose of this task is to encourage students to think critically about both the algebraic and graphical interpretation of systems of linear equations. Aligns with A-REI.C.6.
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Lesson Plan
Other

Nearpod: Pairs of Linear Equations

For Teachers 7th - 9th Standards
In this instructional activity, students will learn how to solve systems of equations by graphing, substitution, and elimination.
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Activity
Stefan Warner and Steven R. Costenoble

Finite Mathematics & Applied Calculus: The Matrix of a System and Row Operations

For Students 9th - 10th Standards
The tutorial examines the matrix of a system and row operations. Students learn about the concepts through class notes, examples, and practice problems. Topics include a system of linear equations and augmented matrices. Review exercises...
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Lesson Plan
Alabama Learning Exchange

Alex: Systems on a Mission

For Teachers 9th - 10th
After solving one system of equations by the methods of graphing, elimination using addition or subtraction, elimination using multiplication, and substitution, students will be given four systems to be solved by one of each of the four...
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Linear Systems With Addition or Subtraction

For Students 8th - 9th
[Free Registration/Login may be required to access all resource tools.] Solve systems of equations by addition or subtraction.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Comparing Methods for Solving Linear Systems

For Students 10th - 12th
[Free Registration/Login may be required to access all resource tools.] This lesson covers determining the best method to solve a linear system.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Linear Systems With Addition or Subtraction

For Students 10th - 12th
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving a system by adding the two equations together to eliminate a variable.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Consistent and Inconsistent Linear Systems

For Students 10th - 12th
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving systems with substitution when there is no or infinitely many solutions.
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Unit Plan
PBS

Pbs: Pairs of Linear Equations

For Students 6th - 8th
Use the Visualize It! tool to model word problems. This interactive exercise focuses on solving systems of equations by visualizing the problem or writing expressions then you get to make you own model and write your own word problem to...
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Whiteboard
ClassFlow

Class Flow: Solving Systems by Graphing

For Teachers 9th - 10th Standards
[Free Registration/Login Required] Students will learn how to estimate what the solution to a system of linear equation is by graphing.
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Activity
Texas Instruments

Texas Instruments: Writing and Solving Systems of Equations Using Cabri Jr.

For Teachers 9th - 10th
Through this introduction to the use of the Cabri Jr. application in the Algebra classroom, students will algebraically and graphically determine equations of lines, as well as determine solutions to systems of linear equations. Using...
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Interactive
Concord Consortium

Seeing Math: System Solver

For Students 9th - 10th
Deepen your understanding of systems of linear equations with the System Solver. This interactive offers unique opportunity to perform operations on a system and immediately observe the graphic, tabular, and symbolic results of the...
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Problem Solving Using Linear Systems

For Students 9th - 10th Standards
Ten problems present practice using problem-solving with linear systems in real-world situations. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Systems Using Substitution

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Solve linear systems by using substitution.
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Activity
Texas Instruments

Texas Instruments: Simultaneous Equation Solver App

For Teachers 9th - 10th
Students use this App to calculate solutions (a unique solution, no solution, or an infinite number of solutions.unique) for linear systems. They can work with systems that contain both numeric and symbolic coefficients and have up to 30...
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Activity
Texas Instruments

Texas Instruments: Linear Inequalities

For Teachers 9th - 10th Standards
In this question set, students are asked to solve inequalities in one variable, graph linear inequalities, and graph systems of linear inequalities. Questions are multiple choice and true/false; solutions are included.
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Activity
Texas Instruments

Texas Instruments: Matrices and Linear Equations

For Teachers 9th - 10th Standards
This Computer Algebra System (CAS) activity encourages students to investigate addition, subtraction, and multiplication of matrices. They find the inverse of a matrix. Students also solve a set of linear equations by using matrices.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Solving Linear Systems Using Matrices and Technology

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers using a graphing calculator and matrices to solve a system of equations.
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Article
Math Planet

Math Planet: The Substitution Method for Solving Linear Systems

For Students 9th - 10th
A way to solve a linear system algebraically is to use the substitution method. The substitution method functions by substituting the one y-value with the other. This resource explains this method by showing an example along with a video.
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Unit Plan
Khan Academy

Khan Academy: Number of Solutions to Equations Challenge

For Students 7th - 8th Standards
Given a linear equation with missing values, determine appropriate values in order to have one, zero, or infinite solutions. For example, complete the equation -11x + 4 = __x + __ so that it has no solutions. Students receive immediate...
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Activity
Other

Simon Fraser University: Background for Linear Systems

For Students 9th - 10th
This site from the Simon Fraser University gives an introduction to solving a system of differential equations.
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Activity
Purple Math

Purplemath: Systems of Linear Inequalities

For Students 9th - 10th Standards
This Purplemath lesson describes how to solve a system of linear inequalities by graphing.

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