Solve Linear Equations Using Substitution and Elimination
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
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
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify which method for solving systems is being described by this fact:
If one equation is isolated like y = 2x or x = 7 - 4y then this method should be used.
Graphing
Substitution
Elimination (linear combination)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify which method for solving systems is being described by this fact:
Equations must have like terms "stacked" up vertically, usually written in standard form.
Graphing
Substitution
Elimination (linear combination)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When solving the system, if you get a result of something like 6 = 6 or -2 = -2 and the answer is:
No Solution
Infinitely Many Solutions
Not possible
Tags
CCSS.8.EE.C.8B
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the solution:
2x-5y=15
3x+y=31
(10,1)
(13, -8)
(-10,-7)
No Solution
Tags
CCSS.8.EE.C.8B
6.
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
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If 2x+3y = 12 and 3x-2y=5 then
x = 2, y = 3
x = 2, y = -3
x = 3, y = 2
x = 3, y = -2
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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