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Technology 
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Apples and Oranges 1 Decimal

Solve by substitution (Algebra) 
Android 
Tool 
$ 
[0]

This application is a basic tool for learning algebra. Users try to solve a system of linear equations with two equations and two unknown variables. It is based on the same problem used in the free ap...
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Solving Systems of Equations i...

Solve by substitution (Algebra) 
Flash 
Support Material 

[0]

The method of solving system of equations in two variables by substitution and by equating the coefficients.
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Solving Systems of Equations i...

Solve by substitution (Algebra) 
Flash 
Support Material 

[0]

This minilesson explains the method of solving system of equations in three variables by substitution.
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Linear Inequalities

Solve by substitution (Algebra) 
Computer 
Tool 

[0]

Students create linear inequalities and systems of linear inequalities on a coordinate plane. This is like a graphing calculator with advanced viewing options.
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Interactive Story Problem: The...

Solve by substitution (Algebra) 
Excel 
Tool 

[1]

Students explore some of the costs associated with smoking cigarettes. Note the User's Guide link (MS Word file download) provides additional notes for the instructor.
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3 Equations  PRACTICE Simulta...

Solve by substitution (Algebra) 
JavaScript 
Tool 

[1]

One of the problems in dealing with three equations and three unknowns is a lack of practice problems. This script provides a new problem set each time which has integer answers. Another difficulty fa...
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3 Equations  Solve 3 Simultan...

Solve by substitution (Algebra) 
JavaScript 
Tool 

[0]

This is a companion program to sys3equations_practice.htm. This program does not solve the 3 equations3 unknowns system; rather it is a tool to help the student work through the problem using ...
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