What is the line of intersection of the xy and xz planes?

So far this is what I have:

The planes I used are: xy=(3,4,0)+s(1,1,0)+t(2,3,0)

and xz = (2,0,1)+p(1,1,0)+q(1,0,2)

Now I need the scalar equations in the for Ax+By+Cz+D=0 so I found the cross product of the direction vectors to get the normals which were:

n1=(0,0,1) and n2=(0,-1,0) where n=(A,B,C)

Heres where my problem is, I dont see a way to plug these normals in to get a scalar equation. Did I do something wrong, or what do I do next?