Understanding the Substitution Method in Solving Systems of Equations
Interactive Video
•
Mathematics
•
7th - 10th Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
Mia Campbell
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of the substitution method in solving systems of equations?
To graph the equations
To solve for one variable in terms of another
To find the slope of the line
To eliminate all variables
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When using the substitution method, what is the first step?
Graph the equations
Add the equations together
Multiply both equations
Look for an isolated variable
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the substitution method, what do you do after finding an expression for one variable?
Graph the expression
Ignore the expression
Substitute it into the other equation
Solve for the same variable again
Tags
CCSS.7.EE.B.4A
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What operation is used to isolate the variable after combining like terms?
Division
Multiplication
Subtraction
Addition
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the solution to the system of equations in the first example?
(2, 4)
(2, 8)
(8, 2)
(4, 2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the second problem, what expression is substituted for y?
3x + 5
x + 7
4x + 2
2x - 1
Tags
CCSS.6.EE.A.3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of distributing the positive two in the second problem?
-2x - 14
2x - 14
-2x + 14
2x + 14
Tags
CCSS.7.EE.B.4A
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