Final answer:
The -= operator is an example of an augmented assignment operator, commonly used to update and assign the result to a variable in programming.
Step-by-step explanation:
The -= operator is an example of an augmented assignment operator. In programming languages such as Python, augmented assignment operators are used to update the value of a variable by performing an operation on it and then assigning the result back to the variable in a single, concise step. For instance, x -= 1 is equivalent to x = x - 1, where x is a variable that has been previously defined.The -= operator is an example of a(n) augmented assignment operator.
An augmented assignment is a combination of an arithmetic operator and an assignment operator. It is used to perform a calculation and update the value of a variable in a single step. In this case, the -= operator subtracts the value on the right from the value on the left and assigns the result back to the left variable.For example, if we have a variable x = 10, the expression x -= 5 is equivalent to x = x - 5, which updates the value of x to 5.