Answer:
First you need to make a water and vinegar mixture, but before you do anything with it, use a tiger score to put holes in the wallpaper. Then use a sponge to soak the wallpaper with the mixture. Start peeling the top layer off then re-apply the mixture to the under layer and remove that with your hands or a scraping device. The mixture will not damage your floors, walls, etc. Other chemicals usually don't work and will sometimes destroy your wood molding or floors.