Question

Остап задумав число.додав до нього 5,а потім відняв 3 і в результаті отримав 12.Яке число задумав остап?

Answer 1

х - задуманное число

х + 5 - 3 = 12

х = 12 + 3 - 5

х = 10

Ответ: Остап задумал число 10.

Answer 2

Solution:

Let's solve this problem step by step.

1. Ostap's Number: Let's assume the number Ostap has in mind is represented by the variable "x".

2. Adding 5: When Ostap adds 5 to the number, it becomes "x + 5".

3. Subtracting 3: After subtracting 3 from the previous result, it becomes "x + 5 - 3".

4. Result is 12: According to the given information, the result of the above operation is 12. So, we can form the equation: ``` x + 5 - 3 = 12 ```

5. Solving for x: Now, let's solve for x to find the number Ostap had in mind.

   x + 5 - 3 = 12
   x + 2 = 12
   x = 12 - 2
   x = 10
   

Ostap's Number:

Ostap had the number 10 in mind.