I need to find a vector that is parallel to the intersection of the planes:

2x - 3y +5z = 2 and 4x + y - 3z = 7

AfterI obtain this, I need to find the equation of the plane through the origin that is perpendicular to the line of intersection of the above mentioned two planes.

My head is spinning trying to figure out where to begin! Any aid would be much appreciated. Frostking