Solving Systems by Elimination
Authored by Delydia Albert
Mathematics
8th Grade
CCSS covered
Used 5+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sloan plans to solve the system shown using elimination. Which describes a first step she could take?
Multiply the first equation by 5.
Multiply the second equation by 2.
Both A and B.
Neither A nor B.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mateo plans to solve the system below using elimination. Which is a reasonable first step Mateo could take?
Multiply the 2nd equation by 3
Multiply 2nd equation by -3
Multiply the 1st equation by -3
Any of the above
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jacobi wants to solve the system of equations below by using elimination. Which of the following describes the next step Jacobi should take?
Multiply each term in the 1st equation by -1
Multiply each term in the 2nd equation by -2
Multiply each term in the 2nd equation by 2
Add the two equations together
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
OPEN ENDED QUESTION
3 mins • 1 pt
Paulo is solving the system of equations shown and says that the first step is to add the equations together to eliminate the y variables. Describe Paulo's error.
Evaluate responses using AI:
OFF
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Paulo is solving the system of equations shown and says that the first step is to add the equations together to eliminate the y variables. What is a possible first step Paulo could take?
Multiply the first equation by -1
Multiply the first equation by 1
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
McKayla is using elimination to solve the system below and will first add the equations together. Which of the following shows the result of the two equations added together?
8x=16
2x=16
2x=68
8x=68
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beckett needs to solve the system of equations below using elimination. Which correctly describes the first step Beckett should take?
Multiply each term in the 1st equation by -3
Multiply each term in the 1st equation by 3
Multiply each term in the 2nd equation by -4
Both B and C would work
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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