Substitution: Systems of Equations
Authored by Caitlin Corwin
Mathematics
7th - 10th Grade
CCSS covered
Used 19+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which option correctly substituted the following Systems of Equations?
y = -3x + 19
3x - 2y = -2
3(-3x + 19) - 2y = -2
3x + 2(-3x + 19) = -2
3x - 2(-3x+19) = -2
3x - (-3x + 19) = -2
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is the correct distribution?
3x - 2(-3x + 19) = -2
3x - 5x + 17 = -2
3x - 6x + 38 = -2
3x - 6x - 38 = -2
3x + 6x - 38 = -2
Tags
CCSS.6.EE.A.3
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Combine Like Terms:
3x + 6x - 38 = -2
9x = 36
9x = -40
3x = 36
9x = -36
Tags
CCSS.7.EE.B.4A
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Solve for x.
9x = 36
x = 4
x = 12
x = 25
x = -10
Tags
CCSS.6.EE.B.7
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
We know x = 4 for the following System of Equations:
y = -3x + 19
3x - 2y = -2
Now Solve for y.
y = -7
y = 7
y = -31
y = 31
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which is the correct substitution?
x = -2y + 4
-5x + 4y = 8
-5x + 4(-2y + 4) = 8
-5(-2y - 4) + 4y = 8
-5(-2y + 4) + 4y = 8
-2y + 4 + 4y = 8
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct substitution?
y = 2x + 3
y = -3x + 3
2x + 3 = -3x + 3
2x + 3 = 3x - 3
y = -3(2x + 3) + 3
y = 2(-3x + 3) + 3
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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