Question

Let f(x) = 3x + 7 and g(x) = 2x - 11. Find (f + g)(x). Do not put any spaces between numbers, variables and symbols.

Answer 1

          f(x) = 3x + 7

       + g(x) = 2x - 11

 f(x) + g(x) = 5x = 4

   (f + g)(x) = 5x - 4