Substitution Elimination

Substitution Elimination

9th Grade

10 Qs

quiz-placeholder

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Substitution Elimination

Substitution Elimination

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

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

Standards-aligned

Created by

Anthony Clark

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve the system:
2x - 5y = 12
y = -2

y = -2

(11, -2)

(1, -2)

no solution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve the system:
x + 6y = 17
x - 3y = 8

(5, 2)

(11, 1)

(1, 11)

no solution

Tags

CCSS.8.EE.C.8B

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve the system:
2x + 3y = -2
3x - 2y = 23

(5, -4)

(-4, 5)

(-5, 4)

infinite solutions

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve by elimination
-12x-4y= -8 
  -6x-2y= -4

no solution 

(0,0)

infinite solutions 

(4,0)

Tags

CCSS.8.EE.C.8B

5.

MULTIPLE CHOICE QUESTION

1 min • 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

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve the system by elimination.  

−8x − 10y = 20
−8x − 6y = −4 

Infinite number of solutions  

(6, 5) 

(−6, −5) 

(5, −6) 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve the system by elimination.  

−7x + 6y = 29
10x + y = 16 

(1,6) 

(−1,−3) 

 (−3, −1) 

(−1, 3) 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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