Question

9. Чему будет равно значение переменной Х, после выполнения следующей последовательности операторов? a:=25; b:=a-4; x:=(a-b)*2-2;

Answer 1

A = 25         b = 0               x =0
a = 25         b = 25-4=21     x = 0
a = 25         b = 21              x = (25-21)*2 -2 = 4*2 -2 = 6

Ответ:
х = 6      

Answer 2

Calculating the Value of Variable X

To calculate the value of variable X after the given sequence of operators is executed, we can follow the steps provided in the question.

1. First, the value of variable a is set to 25: a := 25

2. Then, the value of variable b is set to the result of a minus 4: b := a - 4

3. Finally, the value of variable x is set to the result of the expression (a - b) multiplied by 2 and then subtracted by 2: x := (a - b) * 2 - 2

Now, let's calculate the value of variable x step by step.

- The value of a is 25. - The value of b is a - 4, which is 25 - 4 = 21. - The value of x is (a - b) * 2 - 2, which is (25 - 21) * 2 - 2 = 4 * 2 - 2 = 8 - 2 = 6.

Therefore, after the given sequence of operators is executed, the value of variable X will be 6.