Answer
$x=2-2t; y=2-t; z=-1-2t$
Work Step by Step
The line passing through containing the point $P(p,q,r)$ and parallel to the normal vector $n=\lt a,b,c\gt$ is expressed by the parametric equations as follows:
$x=p+at; y=q+bt; z=r+ct$
Here, $t$ is any real number.
Now, the line passing through containing the point $P(2,-1,-2)$ and parallel to the normal vector $n=\lt -2,2,-1 \gt $ is expressed by the parametric equations as follows:
$x=2-2t; y=2-t; z=-1-2t$