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Solving by Substitution

Authored by Faith Graham

Mathematics

7th - 9th Grade

CCSS covered

Used 54+ times

Solving by Substitution
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does Substitution mean?

To submerge in water

The action of replacing

To add a bunch of numbers together

To stand up for the Constitution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which choice shows substitution correctly?

y = 2x + 3

3x + 2y = 20

3x + (2x + 3) = 20

3x + 2y(2x + 3) = 20

3x + 2 (2x + 3) = 20

y + 2x + 3 = 20

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

y = 2x + 5
-4x + y = 9

(-2, 1)
(-2, -1)
(2, -1)
(2, 1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the solution to the system?
8x + 4y = 12
y = -2x + 3

(0,3)
(3,0)
No solution(parallel lines)
Infinitely many solutions

Tags

CCSS.8.EE.C.8B

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the solution to this system?
y = x + 5
4x + y = 20

(3,8)
(8,3)
(0,2)
(2,0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve the system of equations.

y = 4x + 1

3x + 2y = 13

(1, 5)

(5, 1)

(0.25, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve the system of equations using substitution:
3x - y = -8
x = -2

(2, 2)
(-2, -14)
(-2, 2)
(2, 14)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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