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Solving Systems by Elimination

Authored by Martin Grum

Mathematics

9th - 10th Grade

10 Questions

CCSS covered

Used 1K+ times

Solving Systems by Elimination
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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

4x +  8y = 20
-4x + 2y = -30
Which variable will be eliminated?

The  x
The  y
The  z
The unknown

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve by elimination:
4x+9y=28
-4x-y=-28

(-7,0)
(6,0)
(-6,0)
(7,0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve by elimination:
3x+7y=23

-3x-7y=-17

No solution
ARN
(-3,3)
(3,3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve by elimination:
4x+4y=4

3x+4y=10

(7,-6)
(-6,7)
(6,7)
(7,6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve by elimination:
-x+2y=17

2x+2y=-10

ARN
(-9,4)
(-9,-4)
(9,-4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve by elimination:

7x-9y=29


7x+2y=-15

(-4,-1)

(-1,-4)

(-1,4)

(-1,6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve by elimination
4x-6y= -6
-2x-12y= -12

(0,1) 
(1,0)
(1,1)
(2,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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