How to input an image?

How do I input an image into a reply on a thread? The format is too confusing for me and I can't seem to find an explanation.
 
Basic coding. To embed an image properly, you have to take its direct link url (those end with an extension such as .png or .jpg), usually by right clicking the image and selecting "View Image", and use the BBCode tags img around that url.

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Here's how you do it. Quote my post to see how it's done.
 
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