Find the equation of the plane mid-parallel to the planes `2x-2y+z+3=0` and `2x-2y+z+9=0`.

Find the equation of the plane mid parallel to the planes 2x-2y+z+3=0\ a n d\ 2x-2y+z+9=0.

Find the equation of the plane mid parallel to the planes 2x-2y+z+3=0\ a n d\ 2x-2y+z+9=0.

Find the equation of the point mid-parallel to the planes 2x-2y+z+3=0 and 2x-2y+z+9=0.

Find the equation of the plane mid-parallel to the planes 2x-3y+6z+21=0 and 2x-3y+6z-14=0 .

Find the equation of the plane parallel to the plane 2x-2y-z-3=0 and situated at a distance of 7 units from it.

Find the equation of the plane parallel to the plane x-2y+2z-3=0, which is at a unit distance from (1,2,3)

Find the equations of the planes parallel to the plane x-2y+2z-3=0 which is at a unit distance from the point (1,2,3) .

Find the equations of the planes parallel to the plane x-2y+2z-3=0 which at a unit distance from the point (1,2,3).

Find the equations of the planes parallel to the plane x-2y+2z-3=0 which is at a unit distance from the point (1,2,3) .

Find the equation of the plane through P(1,4,-2) and parallel to the plane -2x+y-3z=0