A student is asked to solve the equation below and to justify her steps. Identify what, if anything, is incorrect in her math or justification.
j - 6 = - 10
Step
Justification
j - 6 = - 10
Given
j - 6 - 6 = - 10 - 6
Addition property of equality
j = - 16
A.
The student has mislabeled the work in the second step as "Addition property of equality."
B.
The student improperly applied the addition property of equality in the second step.
C.
The student rewrote the the problem incorrectly in step 1.
D.
There is no error. The student's justification is correct.
Answers (1)
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