Find equations of the tangent plane and normal line to the surface $x = 4 y^2 + 5 z^2 - 267$ at the point (-6, 2, -7).
Tangent Plane: (make the coefficient of x equal to 1).
$= 0$.
Normal line: $\langle -6,$, $\rangle$
$+ t\langle 1,$ , $\rangle$.