Solving Systems of Equations by Substitution Review
Authored by Barbara White
Mathematics
9th Grade
CCSS covered
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5 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Which answer has a correct next step for this system? (Read all three answers carefully before selecting one!)
3x + 4y = 3
y = 3x + 5
The variable is already isolated, so we've already solved the system.
The variable is already isolated for y, so we substitute 3x + 5 in the first equation like this:
3x + 4(3x + 5) = 3
The variable is already isolated for y, so we substitute 3x + 5 in the second equation like this:
3(3x + 5) + 4y = 3
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the solution to this system?
(Use the substitution method.)
8x - 2y = 6
y = 3x
(3, 9)
(5, 2)
(2, 3)
(3, 2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the solution to this system?
2x + 3y = 4
y= 5x - 27
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Solve the system of equations by using the Substitution Method.
-8x+y= -8
2x+3y= -24
(0,-8)
(-1, -8)
(-2, 6)
(1, -8),
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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