The line L L\,L is tangent to x2+y2−6x−12y=0x^2+y^2-6x-12y=0x2+y2−6x−12y=0 at (8,3)(8,3)(8,3). Find the equation of L L\,L in the form ax+by+c=0ax+by+c=0ax+by+c=0.