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7.3 Solving Systems of Equations by Elimination Using Multiplication. 1. Solve by Elimination. 2. Exa mple Problems. 3. Practice Problems. Multiply, Then Use Elimination.

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## 7.3 Solving Systems of Equations by Elimination Using Multiplication

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**7.3 Solving Systems of Equations by Elimination Using**Multiplication 1 Solve by Elimination 2 Example Problems 3 Practice Problems**Multiply, Then Use Elimination**• If the coefficients of either variable in the first equation DO NOT match the corresponding coefficients in the second equation: • Multiply one equation by a number that will make one of the coefficients of a variable match in both equations • Follow the elimination steps**Another Example**• An untrue solution identifies and Inconsistent System • That means the lines won’t cross… **Practice Problems**• Page 391 Problems 13-39 (odd)

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