Answer:
z-12-4=0
or z-16=0
Step-by-step explanation:
Here, we can solve this single step equation by adding 12 to each side. We will get z = 16, and we know from basics that 16-12=4. So, finally we can re-arrange terms to get z-12-4=0
z - 12 - 4 = 0
or, z = 4 + 12
