Find an equation of the plane. The plane through the point (9, −7, −7) and parallel to the plane 4x − y − z = 5.

a) Use the given point to determine the constant term in the plane equation.
b) Identify the normal vector to the parallel plane.
c) Write the equation of the plane in the form Ax + By + Cz = D.
d) Verify the parallelism of the two planes.