How do I find equations of the planes for two similar yet different problems such as:

Find an equation of the plane through the point and parallel to the given plane:

(-5, 9, -4)

x+ y +z+ 4 = 0

and

Find an equation of the plane that contains the line and parallel to the given plane

x= 2 + 2t,y=t,z= 6 -t

2x+ 4y+ 8z= 17