Equations Elimination
Presentation
•
Mathematics
•
9th Grade
•
Hard
Joseph Anderson
FREE Resource
5 Slides • 3 Questions
1
Solving Systems of Equations
Elimination Style
2
Open Ended
What do you notice about these two equations?
3
You may have noticed...
Standard Form
No variables are alone
The coefficients of x and y are almost the same...
4
Open Ended
What do you notice about these equations?
5
You may have noticed....
The y values are both alone.
The y values are opposites.
The x coefficients are different.
6
What would happen if I added them vertically?
3x+2x = ?
-y+y = ?
12+13 = ?
7
Multiple Choice
What happens when I add these vertically?
8
Elimination means just that! Eliminate!
When you add equations vertically, you can see that opposites will disappear!
Solving Systems of Equations
Elimination Style
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