Answer:
z stands for 3.
Explanation:
First, subtract 12 from both sides.
-8z + 12 - 12 = -12 - 12
-8z = -24
Next, let's put brackets [] between both numbers. Any number inside of these becomes positive.
[-8z] = [-24]
8z = 24
Finally, let's divide doth sides by 8!
8z/8 = 24/8
z = 3