My bathroom sink is backking up water? How do I fix It.

My bathroom sink is backking up water? How do I fix It.
We find most sink clogs in the horizomtal drain line in the wall. The best was to clear a clog is to snake the line
Remove the "J" bend at he trap and send a snake up into the wall,(see image) There will bea 90 about 8 inches in but once past that you only have 6 more feet to go. Afterward flush it out with a tub of hot water. Good luck, Tom