Answer:
We can simplify the expression using the order of operations, which is commonly remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction):
First, we evaluate the expression inside the parentheses:
60 - (-15) + (-13) = 60 + 15 - 13
Next, we perform the addition and subtraction operations from left to right:
60 + 15 - 13 = 72
Therefore, 60 - (-15) + (-13) simplifies to 72.