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Worksheet
Curated OER

Solving Verbal Problems using a System of Linear Equations

For Students 9th - 11th
In this Algebra I/Algebra II activity, students solve word problems whose solution requires the use of a system of linear equations in two variables.  The two page activity contains a combination of ten multiple choice and free...
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Worksheet
Curated OER

Using a Graph to Solve a System of Linear Equations

For Students 9th - 11th
In this Algebra I/Algebra II worksheet, students use graphing to solve a system of linear equations.  The one page worksheet contains one multiple choice question.  Answer is included.
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Worksheet
Curated OER

System of Linear Equations - Word Problems

For Students 9th - 12th
In this algebra instructional activity, students analyze word problems, define variables, set up a system of linear equations, and solve the system.  There are 7 questions.
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Website
Other

Algebra.com: Linear Equation and System Solvers

For Students 9th - 10th Standards
Linear equations can be solved and graphed using this interactive site. This site allows the user to enter any linear equation in standard form and the y-intercept will be found through a step-by-step process. Systems of inequalities can...
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Activity
National Council of Teachers of Mathematics

The Math Forum: Math Library Maple

For Students 9th - 10th
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.
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Activity
Texas A&M University

Systems of Linear Equations an Introduction [Pdf]

For Students 9th - 10th Standards
Use this site to see how graphing and substitution are used to solve systems of equations. The examples have systems that have one, infinite, or no solutions. The site is set up to see the solutions step by step.
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Activity
Texas Instruments

Texas Instruments: Solving Equations

For Teachers 9th - 10th
Learn to use the TI-86 to solve many types of equations by following this lesson plan and activity. Included are keystroke instructions and calculator screenprints to guide students.
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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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Handout
Other

Morgan State: Linear Algebraic Equations and Matrices

For Students 9th - 10th Standards
This site gives information on linear equations and matrices. Among the topics discussed are the substitution method, Gauss-Jordan Elimination Method, matrix operations, matrix multiplication, and inverse matrices.
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Activity
Purple Math

Purplemath: Systems of Linear Equations: Definitions

For Students 9th - 10th Standards
Covers the basic definitions involved in systems of linear equations.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Rei, a Ced Cash Box

For Teachers 9th - 10th Standards
In this task, learners are asked to construct equations in two variables to determine whether a loose coin beside a ticket box belongs with the money collected for tickets. They must then explain their reasoning. Aligns with A-CED.A and...
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Rei Quinoa Pasta 3

For Teachers 9th - 10th
For this problem, young scholars must determine how much of a quinoa-based gluten-free pasta is actually quinoa. They must study the ingredient list and set up linear equations to solve the problem. Aligns with A-REI.C.6.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 8.ee How Many Solutions?

For Teachers 8th Standards
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.
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Unknown Type
Khan Academy

Khan Academy: Represent Linear Systems With Matrix Equations

For Students 9th - 10th Standards
Represent systems of two linear equations with matrix equations by determining A and b in the matrix equation A*x=b. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
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Unknown Type
Khan Academy

Khan Academy: Represent Linear Systems With Matrices

For Students 9th - 10th Standards
Determine the matrix that represents a given system of linear equations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
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Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 11 [Pdf]

For Students 9th - 10th Standards
The practice problem examines the elimination method for solving a system of linear equations. The graphs of the equations are available in PDF format.
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Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 12 [Pdf]

For Students 9th - 10th
The practice problem examines the elimination method for solving a system of linear equations. The graphs of the equations are available in PDF format.
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Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 18 [Pdf]

For Students 9th - 10th
Students solve a system of linear equations using the elimination method. The practice exercise is available in PDF format.
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Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 19 [Pdf]

For Students 9th - 10th
The practice problem examines a system of linear equations. The math graphs are available in PDF format.
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Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 20 [Pdf]

For Students 9th - 10th
The practice problem examines a system of linear equations. The math graphs are available in PDF format.
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Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 21 [Pdf]

For Students 9th - 10th
The practice problem uses the addition method to solve a system of linear equations. The handout is available in PDF format.
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Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 22 [Pdf]

For Students 9th - 10th
The practice problem uses the addition method to solve a system of linear equations. The handout is available in PDF format.
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Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 23 [Pdf]

For Students 9th - 10th Standards
Students label the graphs of two linear equations and then solve the system. The graphs are available in PDF format.
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Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 24 [Pdf]

For Students 9th - 10th Standards
Students label the graphs of two linear equations and then solve the system. The graphs are available in PDF format.