The variable x is initialized to 17.
The variable y is calculated as y = x − 2 .
Substituting x = 17 , we get y = 17 − 2 = 15 .
The program prints the value of y , so the output is 15 .
Explanation
Understanding the Program We are given a simple program that initializes a variable x to 17, then calculates y as x − 2 , and finally prints the value of y .
Calculating the Value of y To find the output, we substitute the value of x into the equation for y :
y = x − 2 = 17 − 2 = 15 Therefore, the program will print the value 15.
Determining the Output The program calculates y as x − 2 , where x is 17. Thus, y = 17 − 2 = 15 . The program then prints the value of y , which is 15.
Examples
Imagine you are writing a program to calculate the age of a person's sibling. If the person's age is 17 and their sibling is 2 years younger, this simple program demonstrates how to calculate and display the sibling's age. This basic arithmetic and variable assignment is fundamental in many real-world applications, from calculating discounts to determining quantities in inventory management.