Hi Zobeet,
I recently removed the wallpaper from our small mainfloor bathroom and used fabric softener to remove the wallpaper paste and any remaining paper residue. I mixed the fabric softener with warm water then sprayed it on the walls. The most important thing to remember, is to be sure to let the softener do it's work and just leave it on the walls for at least 5 minutes before trying to scrape it off. It is gummy and messy, but it will work. I used a bunch of paper towels to keep wiping off my scraper and just threw them in a paper waste bag. Also use a fabric softener that you like the smell of, because it will linger for a while. Good luck!

White vinegar did it for me. Cheap, left the walls squeaky clean, is far easier to rinse off than fabric softener, and the smell is gone once the walls are dry. I think I used a big cupful per bucket of hot water.

I was working with plaster walls, which are easier to clean up than sheetrock, though.

C.

We have removed wallpaper from our drywall by peeling it off, it has left a glue on the walls. To remove the glue, I have read that a vinegar and water spray solution will remove the glue with scrapping. What ratio of vinegar to water do I use and does the water need to stay warm/hot?
After removing the glue, will I need to rinse the wall with the vinegar/water solution. Will I then need to apply a primer before painting? I'll be waiting for a good answer. Thank you