How do i get a app off of my purchases apps on my iPhone 6S+?

I accidentally downloaded an app called "sex positions" but i didn't mean to. But how do i get it off my purchased apps

Find your list of purchased apps in the App Store, and swipe left on the app you want to hide to reveal a "Hide" button.

"Hide apps for your iPhone, iPad, iPod touch, or Mac"

These answers are interesting but they only tell you how to hide apps, not deleting. You can't delete apps.

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