Plz help I do not understand

Answer:
-128
Step-by-step explanation:
When it says that x = a number, it means you just need to plug in that number for x in the equation. So in this case, we'd plug in -12 and get:
y = -200-6(-12)
Simplify. According to PEMDAS, we do multiplication first. If a number is in parentheses, you multiply it by the number in front of (to the left) of it. In this case, we multiply -6 x -12 and get:
y= -200+72
Add, and our final answer is:
y=-128
Hopefully this helped, and if I was correct, I'd appreciate it if you marked me as the Brainliest :)