Systems of Linear Equations Elimination and Substitution
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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15 questions
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1.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Solve the following system by substitution:
-8x + 8y = -24
y = 5x - 11
The x-value of the solution is ---.
(Just type in the number)
(a)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the following system by substitution:
y = 3x
6x - 2y = 0
(5, -6)
no solution
infinite solutions
(0, 0)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the following system by substitution:
x + 4y = -8
-8x + 8y = -16
no solution
(-16, 2)
(-5.333, 3.333)
(0, -2)
none of the other choices
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the following system by substitution:
6x - 3y = 0
-7x + y = 20
(4, -3)
(-4, -3)
none of the other choices
(4, 3)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Solve the following system by substitution:
-4x - y = -18
y = x - 7
The y-value of the solution is ---.
(Just type in the number)
(a)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the following system by elimination:
-2x + 7y = 22
5x - 7y = 8
(-3, 16/7)
(-10, -1)
(10, 6)
none of the other choices
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Solve the following system by elimination:
4x + 2y = 18
-4x - y = -21
The x-value of the solution is ---.
(Just type in the number)
(a)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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