Step 1:
\The plane passes through the point 
The plane equations are
\
.
.
The cross product of two normal vectors is the direction vector for the line of intersection.
\The normal vectors of two planes are
\
.
The cross product of two vectors is
\

The directional vector of two planes is
.
Step 2:
\The line equation passes through point
and direction vector
is \ \
.
The line equation passes through
and directional vector
is \ \
.
The line equation is
.
Solution: \ \
\The line equation is
. \ \