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# Systems Using Substitution

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Systems Using Substitution

Isolate and substitute for one variable to solve systems of equations in two variables.

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## Solving Systems with One Solution Using Substitution

This lesson covers solving a system of linear equations using substitution.

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## Solving Linear Systems by Substitution

Solve linear systems by using substitution.

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• PLIX

## Systems Using Substitution: Visualizing Systems of Equations

Systems Using Substitution Interactive

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• Video

## Solve a System of Equations Using Substitution

Solves equations by substitution.

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• Video

## Linear Systems by Substitution: An Explanation of the Concept

This video provides an explanation of the concept of solving linear systems by substitution.

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## Systems Using Substitution Quiz

Quiz for Solving Systems Using Substitution.

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• Practice
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## Systems Using Substitution Practice

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• Critical Thinking

## Systems Using Substitution Discussion Questions

A list of student-submitted discussion questions for Systems Using Substitution.

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## Systems Using Substitution Pre and Post Read

To activate prior knowledge, to generate questions about a given topic, and to organize knowledge using a KWL Chart.

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## Solving Linear Systems by Substitution

Summarize the main idea of a reading, create visual aids, and come up with new questions using a Four Square Concept Matrix.

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## Systems Using Substitution KWL Chart

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• Real World Application

## Finding the Cheapest Cell Phone Plan

All students will be able to research two different cell phone companies and determine which cell phone plan is the cheapest using systems of linear equations. Students will represent these relationships through equations, tables and graphs.

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• Real World Application

## Taxation

Learn how to use a system of linear equations to calculate federal and state taxes.

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• Real World Application

## The Bill of (Equal) Rights

Learn how to use a system of equations to determine which of two cell phone plans is a better deal.

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• Study Guide

## Linear Systems: Solve by Graphing and Substitution Study Guide

This study guide looks at systems of linear equations and how to solve them by graphing and by substitution. It also looks at the types/number of solutions to systems of linear equations.

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