Moving Files – Multisite

Question:

Created a multisite on a subfolder brasil-usa.com/multisite/ …added data to 9 sites…everything working fine. i.e. brasil-usa.com/multisite/sandiego

Now that I am finished, I want to move it to the root directory. I would like it to be:
brasil-usa.com/ (wordpress install)
brasil-usa.com/sandiego

So I copied of the files from the subfolder /multisite/ to the root, but getting an error.

I modified the htaccess and config. Not sure if they are correct.

/* Multisite */
define(‘WP_ALLOW_MULTISITE’, true);
define(‘MULTISITE’, true);
define(‘SUBDOMAIN_INSTALL’, false);
define(‘DOMAIN_CURRENT_SITE’, ‘www.brasil-usa.com’);
define(‘PATH_CURRENT_SITE’, ‘/’);
define(‘SITE_ID_CURRENT_SITE’, 1);
define(‘BLOG_ID_CURRENT_SITE’, 1);

RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]

I bolded the areas in question. Also after reading this tutorial..
https://halfelf.org/2012/moving-wordpress-multisite/

It i instructing me to edit the following files..
“Next you need to manually go through these tables:

wp_site
wp_blogs
Those two tables are really straight forward, by the way. You’ll see what to edit right away.

Then you have to manually (again) review all the wp_x_options tables and look for THREE fields:

home
siteurl
fileupload_url”

I have no idea where these files are…and what to edit.

Any help is greatly appreciated.

Thanks