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Solving Linear Systems by Linear Combinations

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Presentation on theme: "Solving Linear Systems by Linear Combinations"— Presentation transcript:

1 Solving Linear Systems by Linear Combinations
Notes 3.3 Solving Linear Systems by Linear Combinations

2 Linear Combination Method
Step 1: Multiply one or both equations by an integer. The goal is to make one of the variables differ ONLY in sign. Step 2: Add the two new equations together. Step 3: The result should produce an equation with one variable, solve for that variable. Step 4: Substitute that value into an equation to solve for the missing variable.

3 Use the linear combination method to solve the linear system of equations.

4 Use the linear combination method to solve the linear system of equations.

5 Use the linear combination method to solve the linear system of equations.

6 Use the linear combination method to solve the linear system of equations.

7 Homework P , 27-32

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