Solve Systems of Equations with Elimination
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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16 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-6x+5y=1
6x+4y=-10
(1,1)
(-1,-1)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-x - 7y = 14
-4x - 14y = 28
(-2, 0)
(0, -2)
(-2, -2)
(0, 2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve using Elimination Method: 9x - 4y = 7 x - 4y = -17
(-1,5)
(-7,5)
(7,5)
(3,5)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
what is the variable that willl be "eliminated"?
5x - 4y = 11
5x + 4y = -14
x variable
y variables
both variables
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
what is the resulting combined equation for the system below?
9x + y = 12
-9x + y = 6
-18x = 18
y = 18
2y= 18
18x + 2y = 18
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2x - 6y = 20
2x + 5y = -11
what would the top equation become when you multiply everything by -1?
2x - 6y = 20
-2x - 6y = -20
-2x + 6y = 20
-2x + 6y = -20
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
what do you need to multiply the top equation by to make a zero pair:
5
-1
2
-2
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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