Substitution to Find X
Authored by Anthony Clark
Mathematics
7th Grade
CCSS covered
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16 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3x= 21
Use substitution to find X
5
10
7
5
Answer explanation
3x=21
3(x)=21
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
X/2 = 8
Use substitution to find X
32
10
24
16
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
30/x = 10
Use substitution to find X
3
10
11
33
Tags
CCSS.6.EE.B.5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system using substitution:
x + y = 19
y = 3x - 1
(14, 5)
(11, 8)
(5, 14)
(8, 11)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3(x+2)=4(x+2)
2
-2
4
-4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which method would be best (quickest) for solving the system below:
3x - 4y = -2
y = 2x + 1
Substitution
Elimination
Graphing
None
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system using substitution:
y = -1x - 5
4x - 8y = 4
(-3, -2)
(5, -7)
(3, 9)
(-5, 4)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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