Verified Answer :

ncartier03

The answer is C because you; need to add instead of subtracting to get a positive number.

Willchemistry

2 - z / 3 = 12

Multiply both sides by 3 :

3 2 - 3 ( z / 3 )  = 3 * 12

Refine :

6 - z =  36

Subtract 6 from both sides:

6 - z  - 6 = 36 - 6

- z =  30

Divide both sides by - 1

- z / - 1 =   30 / - 1

z =  - 30

answer C

hope this helps!

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