When posting answers, it may happen that somebody else posts an answer moments before me. And because the question was simple, the answers posted are of mostly similar content.
So can I leave my answer posted or should I delete it?
I am a beginner and have learnt a lot from Stack Overflow by posting answers based on simple topics. I have received immensely valuable feedback. But sometimes when I or somebody else posts matching answers, those answers get downvoted by users citing duplicate answers.
What are the guidelines on this?