Thanks!!
Using the normal, n, that you found and the point P
$\displaystyle n = \left[ {\begin{array}{*{20}c}
3 \\
3 \\
{ - 3} \\
\end{array}} \right]\quad P = \left[ {\begin{array}{*{20}c}
1 \\
0 \\
{ - 2} \\
\end{array}} \right]$
write the equation ot the plane
$\displaystyle \Pi :\;n \cdot (R - P) = 0,\quad R = \left[ {\begin{array}{*{20}c}
x \\
y \\
z \\
\end{array}} \right]$.