The hard line on this side goes down through a rubber grommet in the fender.

Pull the line up and out of this grommet.

You can now begin to install the replacement brake line.

Since you opened up the brake system to the air you will need to bleed the system before driving. Never drive a car after working on the brake lines without first bleeding it properly. [crwdns2936915:0crwdne2936915:0]