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3 November, 11:35

1/2b-2=1

1/2b*2/1-2=1

b=2=1

b-2+2=1+2

b=3

A.

The student incorrectly applied the multiplication property of equality before the addition property of equality.

B.

The student did not apply the addition property of equality to isolate b.

C.

The student did not apply the multiplication property of equality to isolate b.

D.

The student correctly solved the two-step equation.

+1
Answers (1)
  1. 3 November, 14:29
    0
    The correct step to simplify the given equation is:

    1/2b=1 + 2

    1/2b=3

    b = 2 (3)

    b = 6

    Therefore, the correct answer among the choices presented is option A. The student incorrectly applied the multiplication property of equality before the addition property of equality.
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