Why is my store url xxx.shopify.com I want it to be my businessname.com, the domain I purchased

Why is my store url xxx.shopify.com I want it to be my businessname.com, the domain I purchased. How do I get it changed to just my purchased domain?

@Purelyxquisite You can change your store domain from the Shopify Admin. Please refer following steps:-

  1. From your Shopify admin, go to Settings > Domains.

  2. In the Primary domain section, click Change primary domain.

  3. Select the domain that you want to set as your primary domain.

  4. Click Save.