Question 282521
f(x)=2-x g(x)=square root 3-x 

(f+g)(x) = 2-x + sqrt(3-x)

f+g(-3) = 2-(-3) + sqrt(3-(-3))
f+g(-3) = 5 + sqrt(0)
f+g(-3) = 5 + 0 = 0