Question

Given f(x)=x+7 and g(x)=x-3 what is f(x)+g(x) ? A.2x+4 B.10x C.2x-7 D.-2x+10

Answer 1

F(x)+g(x) = (x+7) + (x-3) =
                  x + 7 + x - 3 =
                  2x + 4


A.2x+4

Answer 2

F(x) = x+7
g(x) = x-3

f(x) + g(x) = ?

Steps:

(x+7) + (x-3) 

(x+x) + (7-3) --> Combine like terms 

2x + 4

The answer should be A. 2x + 4