Solving Systems of Linear Equations by Substitution
Presentation
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Samuel Stansbery
Used 7+ times
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7 Slides • 0 Questions
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Solving Systems of Linear Equations by Substitution
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Did you know?
You don't have to graph a linear systems of equations to solve it.
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Instead...
We can use our algebra skills to find the x and y parts of the point where the graphs meet...
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So...
How do we do this?
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Well, I already know that x = -6y
I'm going to use this to solve for y...
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Not that I know y = -1, I can use this to solve for x...
Why do you think I used the second equations?
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Solving Systems of Linear Equations by Substitution
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