Question

What is the solution to the equation?

2 - Z/3 = 12

Please help me. Thanks~! ^^



A. z = -42

B. z = -34

C. z = 30

D. z = 42

Answer 1

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!

Answer 2

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