'Opposite integers' presentation slideshows

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Adding Integers

Lesson 1.5. Adding Integers. What is the Definition of an opposite? Example If a car goes forward 20 ft and then backs up 20 ft, it ends where it started. Using opposite integers, you can represent this situation as 20 + (?20) = 0.

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Elimination Method

Elimination Method. Solving Systems of Equations. 4x + 3y = 10. 1. 2. 2x + y = 4. Elimination. Substitution. Pick one of the variables you would eliminate. Find the LCM . Multiply equations to get the LCM and make sure they are opposite integers. Eliminate by adding.

778 views • 4 slides