Steps Systems of Equations by Substitution
Authored by Anthony Clark
Mathematics
11th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which option shows the CORRECT substitution for this system?
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which option shows the CORRECT substitution for this system?
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which option shows the CORRECT substitution for this system?
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which option shows the CORRECT substitution for this system?
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
REORDER QUESTION
1 min • 5 pts
Put the steps for solving by SUBSTITUTION in order:
Solve for the second variable
Plug the resulting expression into the other equation
Solve one equation for x or y
Solve for the first variable
Plug that number into the other equation
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
DRAG AND DROP QUESTION
1 min • 2 pts
In this system x+3y=9 it'll be easiest to start by solving the first equation for x. The result of doing so is x=9-3y. Fill in the blanks to plug that expression in and solve for y: 4(9-3y)-2y =-6 36-12y-2y=-6 36-14y =-6 -14y= (a) y= (b)
-42
3
30
-3
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
In this system
x+3y=9
4x-2y=-6
it'll be easiest to start by solving the first equation for x.
The result of doing so is x=
(a)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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