How to delete songs on my iPhone using iTunes?

I deleted all my songs off my iPhone 5 manually using my iphone and shows there are no songs on it now that i plug in my computer it shows all the songs there and i can't use them or delete em or i can't even add more music too my iphone5, Help!

Try to delete songs on iTunes then sync iTunes with your iPhone.

Right click the song you want to get rid of and delete it. Afterwards, you can sync your iPhone to your computer and the song'll be gone.

Connect iphone and sync with iTunes, and you can transfer music from iTunes to iPhone.

Try to delete it using itunes. It will work.