Solving Systems Using Substitution and Elimination
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which method would be best (quickest) for solving the system below:
x + y = 11
3x - 4y = -2
Substitution
Elimination
Graphing
None of these
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system:
x + y = 19
y = 3x - 1
(14, 5)
(11, 8)
(5, 14)
(8, 11)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system:
3x + y = 19
2x - y = 6
(5, 14)
(4, 5)
(5, 4)
(14, 5)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which method would be best (quickest) for solving the system below:
3x - 4y = -2
y = 2x + 1
Substitution
Elimination
Graphing
None
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve using substitution or elimination. −4x − 2y = −12 4x + 8y = −24
(5,-5)
(6,-6)
No solution
Infinitely many solutions
Tags
CCSS.8.EE.C.8B
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Solve the system of equations: 5x + 2y = 9 and 3x - 4y = -6.
x = 3/2 and y = 57/26
x = -1 and y = 4
x = 2 and y = 3
x = 3/2 and y = 57/26
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Solve:
x + y = 4
-5x - 6y = -18
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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