Solve System with Elimination
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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13 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
________________ is a set of two or more equations that have the same variables.
solution of a system
elimination method
system of equations
table
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve for x and y
3x + 2y = 16
7x + y = 19
(-2,5)
(-2,-5)
(2,-5)
(2,5)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What number should we multiply by and on which equation?
3x + 2y = 16
7x + y = 19
bottom, -2
top, -2
bottom, 3
top, -3
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5x + 16y = -16
-9x - 8y = 8
Multiply bottom equation by 2
(3, 1)
(3, -1)
(-3, -1)
(0, -1)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What number should we multiply by and on which equation?
14x - 9y = 1
-7x + 3y = 16
bottom equation by 3
bottom equation by -2
top equation by -2
top equation by 3
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
14x - 9y = 1
-7x + 3y = 16
(10, -11)
(-10, 11)
(-11, 11)
(-7, -11)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
14x - 10y = -6
7x - 2y = -18
Multiply bottom equation
by -5 or -2
(-4, 5)
(-4, -5)
(4, 11)
(-5, 4)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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