How do I solve this x/3=-4?

multiply both sides by 3

Please stop posting under sundry names. You are doing yourself no good.

What do you mean by sundry names? What's up with you telling me this because I don't know what you mean? My name is Kevin Shaw! This is my best friend computer I am using at this time because mines is in the shop, so don't think that this is my friend. I appreciate her letting me use her computer.