The line
satisfies both plane equations. We solve the second one for
:
and plug the result into the first equation:
Hence
Then the line is
In the
-plane,
. Hence, for the first entry of the line
holds when
So,
intersects with the
-plane in the point
In the
-plane,
. Hence, for the second entry of the line
holds when
So,
intersects with the
-plane in the point
In the
-plane,
. Hence, for the third entry of the line
holds when
So,
intersects with the
-plane in the point