Hi, I have been at this single problem for two hours with nothing to show for it. Find symmetric equations for the line of intersection of the planes. z = 3x - y - 7 z = 4x + 2y - 6 They also give me one of the symmetric equations, z/10. I have over 3 pages of work for this. I tried moving the z over and using the cross product, and then setting y equal to 0 to find x and y and then using that to find a point on the line of intersection. I then get an equation for a line, but its wrong. I don't know what else to do.