Question

Задуманному числу прибавили 255, вычли 189, получилось 422 .Какое число задумали?

Answer 1

Задуманное число: 356
356+255-189=422
1) 255-189= 66
2) 422-66=356
3) 356+255-189=422

Answer 2

Problem Analysis

We are given the following information: - A number was chosen. - 255 was added to the chosen number. - 189 was subtracted from the result. - The final result is 422.

We need to determine the original number that was chosen.

Solution

Let's assume the original number is x.

According to the given information, we can write the following equation: x + 255 - 189 = 422

To find the value of x, we can solve this equation.

Adding 189 to both sides of the equation, we get: x + 255 = 422 + 189

Simplifying the right side of the equation, we have: x + 255 = 611

Subtracting 255 from both sides of the equation, we get: x = 611 - 255

Simplifying the right side of the equation, we have: x = 356

Therefore, the original number that was chosen is 356.

Answer

The original number that was chosen is 356.