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## Get ready for Precalculus

### Unit 5: Lesson 1

Equivalent systems of equations and the elimination method- Systems of equations with elimination: King's cupcakes
- Why can we subtract one equation from the other in a system of equations?
- Elimination strategies
- Combining equations
- Elimination strategies
- Systems of equations with elimination: x-4y=-18 & -x+3y=11
- Systems of equations with elimination
- Systems of equations with elimination: potato chips
- Systems of equations with elimination (and manipulation)
- Systems of equations with elimination challenge
- Elimination method review (systems of linear equations)
- Worked example: equivalent systems of equations
- Worked example: non-equivalent systems of equations
- Reasoning with systems of equations
- Equivalent systems of equations review

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# Reasoning with systems of equations

CCSS.Math: HSA.REI.C.5

## Problem

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