1.5 Linear Equations

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Slide 1  1.5 Linear Equations
 What are linear equations?
 How do we solve them?
 Some practice

Slide 2  1.5 Linear Equations
 What are linear equations?
 Linear equations are equations that have at least one variable and an equals sign. The highest power of the variable must by 1.
 The highest power being 1 makes it linear, and the equals sign makes it an equation.
 Linear Equations: Not Linear Equations:

Slide 3  1.5 Linear Equations
 How do we solve them?
 We use our algebra skills to get the variable on one side of the equals sign, and everything else on the other.
 The way that we do this is by reversing the operations that are in use.
 Quick Recap:

Slide 4  1.5 Linear Equations
 How do we solve them?
 Some simple examples of how this work:

Slide 5  1.5 Linear Equations
 Achieved:
 113.
 120.

Slide 6  1.5 Linear Equations
 Merit:
 133.
 135.