Find x

Is the triangle equilateral, isosceles, or scalen, and explain.
The picture is a circle with a triangle inside P at the top and Q left corner and R at right corner it's labeled with (8x-10) on the outside of the circle between QP, and (6x) on the outside of triangle PR, then at the bottom its (10x+10) between QR
hope this helps because i really need help