Solve the Problem $f ( x , y , z ) = x + e y ^ { + } z$

Multiple Choice

Solve the problem.
-Find an equation for the level surface of the function $f ( x , y , z ) = x + e y ^ { + } z$ that passes through the point $( 9 , \ln ( 2 ) , \ln ( 9 ) )$ .

A) $\ln ( x ) + y + z = 27$
B) $x + e ^ { y + z } = 27$
C) $x + \mathrm { e } ^ { + } \mathrm { z } = 20$
D) $x + e ^ { y + z } = 18$