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Elimination

Elimination

Assessment

Presentation

Mathematics

9th Grade

Easy

CCSS
8.EE.C.8B, HSA.REI.C.6

Standards-aligned

Created by

Kelsey Macias

Used 39+ times

FREE Resource

5 Slides • 3 Questions

1

Solving Systems of Equations

Elimination Style

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2

Open Ended

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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...

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4

Open Ended

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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.

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6

What would happen if I added them vertically?

  • 3x+2x = ?

  • -y+y = ?

  • 12+13 = ?

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7

Multiple Choice

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What happens when I add these vertically?

1

5x=25

2

-5x=1

3

5x+2y=1

4

1x=1

8

Elimination means just that! Eliminate!

When you add equations vertically, you can see that opposites will disappear!

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pattern-tertiary

Solving Systems of Equations

Elimination Style

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