Open Finder
Go to the Applications folder
Locate the app you want to remove
Drag the app to the Trash
Empty the Trash
If the app has an uninstaller, open it and follow the prompts
If the app is from the App Store, open Launchpad
Click and hold the app icon until it jiggles
Click the X if it appears
Remove leftover files from Library folders if needed
Check Application Support, Preferences, and Caches for related files
Restart your MacBook if necessary