Solving Systems of Equations By Elimination
Authored by Jamie Espinal
Mathematics
8th Grade
CCSS covered
Used 13+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What can be distributed to the top equation in order eliminate the x's for both equations?
Multiply it by 2
Multiply it by -2
Multiply it by -5
Multiply it by 5
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What can be distributed to the top equation in order eliminate the y's for both equations?
Multiply it by 2
Multiply it by -2
Multiply it by -7
Multiply it by 7
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What resulted after combining like terms?
14y = -36
-20x = 324
-9y = -36
-5y = 36
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What resulted after combining like terms?
45x = 45
25x = 81
-14y = 45
305x = 181
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the y-coordinate for the solution for this system of equations?
y = -27
y = 27
y = 4
y = -45
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the x-coordinate for the solution for this system of equations?
x = 45
x = 90
x = 1
x = 9
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which equation shows the correct substitution to the top original equation?
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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