According to the problem, we just have to sum the given functions f(x) plus g(x)
[tex](f+g)(x)=f(x)+g(x)=-3x-5+4x-2[/tex]
We just have to reduce like terms. -3x and 4x are like terms; -5 and -2 are like terms.
[tex](f+g)(x)=x-7[/tex]
Hence, the right answer is B.
