Fisherprice766 Fisherprice766 08-10-2020 Mathematics contestada Find (f +g) (x) when f(x) = x +3 and g(x) = x - 3 a) 2x+6 b) 2x c) 2x-6 d) 6 PLEASE I NEED HELP SO MUCH I DONT UNDERSTAND (repost cause the x showed up as 2)