Suppose M is the line with equation x=-5, line N is the line with equation y=1, line G is the line with equation y=x, and line H is the line with equation y=-2. Given A(9,-3), B(6,4), and C(-1,-5), what are the coordinates of the vertices of triangle A'B'C' for a reflection across line M? (put your answers in coordinate form with no spaces)