For the Given Functions F and G, Find the Requested $( f - g ) ( x ) = 12 x - 15 ; \{ x \mid x \neq 1 \}$

Multiple Choice

For the given functions f and g, find the requested function and state its domain.
-f(x) = 7x - 6; g(x) = 5x - 9 Find f - g.

A) $( f - g ) ( x ) = 12 x - 15 ; \{ x \mid x \neq 1 \}$
B) $( f - g ) ( x ) = 2 x - 15 ; \left\{ x \mid x \neq \frac { 15 } { 2 } \right\}$
C) $( f - g ) ( x ) = - 2 x - 3$ ; all real numbers
D) $( f - g ) ( x ) = 2 x + 3$ ; all real numbers