systems: which variable alone for substitution

systems: which variable alone for substitution

9th Grade

60 Qs

quiz-placeholder

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systems: which variable alone for substitution

systems: which variable alone for substitution

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

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

Standards-aligned

Created by

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60 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of these is the easiest variable to get alone? 3x-4y=21 8x+2y=20
x in the top equation
y in the top equation
x in the bottom equation
y in the bottom equation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of these is the easiest variable to get alone?

10x+3y = 13

5y+12x=30

x in the top equation
y in the top equation
x in the bottom equation
y in the bottom equation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of these is the easiest variable to get alone?

7y+3x=19

4y-10x=50

x in the top equation
y in the top equation
x in the bottom equation
y in the bottom equation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of these is the easiest variable to get alone?

3x-4y=21

8x+3y=20

x in the top equation
y in the top equation
x in the bottom equation
y in the bottom equation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of these is the easiest variable to get alone?

8x - 4y = -28

x - 10y = 18

x in the top equation
y in the top equation
x in the bottom equation
y in the bottom equation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of these is the easiest variable to get alone? 13x + 1y = -6 -2x - 14y = -39
x in the top equation
y in the top equation
x in the bottom equation
y in the bottom equation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of these is the easiest variable to get alone?

15x + -8y = 23

-11x + -5y = 40

x in the top equation
y in the top equation
x in the bottom equation
y in the bottom equation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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