Answer:
(w+5) -4
Explanation:
Sum is basically addition, so you need to follow the BODMAS order. Basically being, Brackets Of Division Multiplication Addition Subtraction. You start with the Brackets therefore being, ( , followed by the letter obviously, (w, then Addition, (w+ , then the numbers, (w+5) , lastly you insert the subtraction, (w+5) -4.