
Solving Systems of Equations

Interactive Video
•
Mathematics
•
7th - 10th Grade
•
Hard
+1
Standards-aligned

Ethan Morris
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving the system of equations 2x + y = 4 and 2x - y = 0 using the elimination method?
Divide both equations by 2
Subtract the second equation from the first
Add the equations to eliminate y
Multiply both equations by 2
Tags
CCSS.8.EE.C.7B
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When solving equations with fractions, what is the recommended first step?
Add the fractions directly
Subtract the fractions
Convert fractions to decimals
Multiply by the least common multiple to clear fractions
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the substitution method, if y = 2x - 5 and y = 5x - 11, what should you do first?
Add the two equations
Replace y in one equation with the expression from the other
Multiply both equations by 2
Graph the equations
Tags
CCSS.8.EE.C.8B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the solution to the system of equations y = -2x + 7 and y = 3x - 3 when solved by graphing?
(0, 7)
(3, 2)
(2, 3)
(1, 4)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When graphing the equation y = 1/3x - 2, what is the y-intercept?
-2
0
3
1/3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a system of three variables, what is a common strategy to start solving the equations?
Add all three equations together
Eliminate one variable using two equations
Convert to decimals
Graph all three equations
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For the system x + y + z = 6, x + y - z = 0, and x - y + 2z = 5, what is the value of x?
4
1
2
3
Tags
CCSS.8.EE.C.8C
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