Please actually show ur work on how u got the answer thank u

Answer:
C
Step-by-step explanation:
I substituted the x value with the different options. I kept doing that until the equation made sense.
Answer:
b) x = 7
Step-by-step explanation:
16+5x = x+12
Subtract 16 from both sides
5x = x+28
subtract x from both sides
4x = 28
divide 4 from both sides
x = 7
Hope this helps :)