Function Notation

Formulas:
(f+g)(x) = Add equations
(f-g)(x) = Subtract equations
(f x g)(x) = Multiply equations (in writing the "x" would be a closed circle)
(f/g)(x) = Divide Equations

Examples:
f(x) = x + 83, g(x) = x + 3 ....... Find (f-g)(x) (Replaces the x's in the other equation with what the equation is = to... this makes sense in my mind)
(f-g)(x) = x+83-3
=x+80 (Yellow highlight = answer)


Find (f+g)(x)
(F-g)(x) = x+83+3
= x+86