Find the Error in Solving Multi-Step Equations

Quiz
•
Mathematics
•
8th Grade
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the Error
What error did the student make when solving the equation:
1/5x + 6 = 3/5x + 5
1x + 6 = 3x + 5
-2x + 6 = 5
-2x = -1
x = 1/2
The student found an incorrect common denominator
The student did not multiply all terms by the common denominator
The student did not use opposite operations appropriately
The student did not correctly eliminate the variable from one side of the equation
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the Error
What error did the student make when solving the equation:
5x + 6 = 66
5x - 6 = 66 -6
5x = 60
5*5x= 60*5
x = 300
The student subtracted 6 from both sides instead of adding
Student multiplied by 5 instead of dividing by 5
Student got the wrong answer when subtracting 66-6
The student did not correctly eliminate the variable from one side of the equation
Tags
CCSS.HSA.REI.A.1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the error in the problem below
19 - 2k = 3k - 1
+3k +3k
19 + 1k = -1
-19 -19
k = -20
They should have divided by 1 for the last step
They should add 19 instead of subtracting 19
I can not find an error
Instead of adding 3k they should subtract 3k
Tags
CCSS.HSA.REI.A.1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is the mistake the student made?
The student did not distribute properly.
The student did not combine like terms properly.
The student did not divide by the proper value.
Tags
8.17
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What was the mistake the student make?
The student did not distribute properly.
The student did not combine like terms properly.
The student did not subtract properly.
Tags
8.17
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which was the mistake the student made.
The student did not combine like terms properly on the left side.
The student did not combine like terms properly on the right side.
The student divided by the wrong value.
The student has x on the wrong side of the equal sign.
Tags
8.17
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is the solution below correct?
5d = 2d - 18
-2d -2d
3d = -18
d = 6
Yes
No
Tags
CCSS.8.EE.C.7B
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