+ # Systems of Linear Equations and Inequalities Pathway

After completing the Systems of Linear Equations and Inequalities pathway you will understand how to solve a system of equations containing two or more equations through the methods known as Substitution in Linear Equations and Simultaneous Linear Equations. Once you have solving multiple equations under your belt, you will begin working with systems of inequalities. This pathway will show you how to use equations and inequalities to model real world problems.

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### Concepts Covered

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• 1 Substitution in Linear Equations Try this one next!
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• 2 Solving and Using Substitution
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• 3 Using Substitution
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• 4 Confirming a Solution
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• 5 Simultaneous Linear Equations
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• 6 Simultaneous Equation Solutions
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• 7 Solving for the Second Variable
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• 9 Basic Addition Method of Solving
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• 10 Addition Method with Reordering
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• 11 Multiplication and Addition Method
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• 12 Three Variable Simultaneous Equations
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• 13 Solving Three Variable Systems Chain
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• 14 Graphing Multiple Lines
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• 15 Intersection of Three Lines
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• 17 Solving Linear Systems by Graphing
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• 20 Linear Systems in the Real World
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• 21 Systems Of Linear Inequalities
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• 22 Solving Systems Of Linear Inequalities
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• 23 Graphing a System of Linear Inequalities
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• 26 Simultaneous Equations and Inequalities
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• 27 Linear Programming
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• 29 Applying Linear Programming
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• 30 Real World Linear Programming