Elimination by Addition and Subtraction
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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20 questions
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1.
OPEN ENDED QUESTION
1 min • 1 pt
Two times a number added to another number is 25. Three times the first number minus the other number is 20. Find the numbers.
Evaluate responses using AI:
OFF
Tags
CCSS.8.EE.C.8C
2.
OPEN ENDED QUESTION
1 min • 1 pt
x + 4y = 11
x – 6y = 11
Evaluate responses using AI:
OFF
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
OPEN ENDED QUESTION
1 min • 1 pt
3x + 4y = 2
4x – 4y = 12
Evaluate responses using AI:
OFF
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
OPEN ENDED QUESTION
1 min • 1 pt
2x – 3y = 9
–5x – 3y = 30
Evaluate responses using AI:
OFF
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
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
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve for x and y.
y = 2/3x - 2
y = -x + 3
(0,3)
(0,-3)
(3,0)
(-3,0)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system of equation ; x - 2y=0 and 3x + 4y =20
x=0
y=5
x=2
y=1
x=4
y=2
x=2
y=5
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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