Answer:
Addition
Explanation:
This the answer because:
1) First, we have to know the Order of Operations
2) An easy way of remembering this is PEMDAS or GEMS
PEMDAS : Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction
GEMS : Grouping (Parenthesis), Exponents, Multiplication and Division (whichever one comes first from left to right), Addition and Subtraction (whichever one comes first from left to right)
3) In this expression, parenthesis would be first because that's what comes first in the order of operations
4) Inside the parenthesis is another expression where you need to add. Therefore, the answer is addition
Hope this helps!