Question

15-х=6 х=15+6х=21 21-6=15 15=15 правильно? ???

Answer 1

Что-то не правильное:
15 - х = 6
после выводим Х
Х = 15 - 6
Х = 9
Ответ : х = 9
А что ты получил не понял вообще откуда и как

Проверяем моё решение:
15 - х = 6
15 - 9 = 6
6 = 6

Answer 2

Да..............и да

Answer 3

Let's break down the steps you've taken:

1. You start with the equation 15 - x = 6.
2. Then, you add x to both sides of the equation to isolate x on one side: 15 - x + x = 6 + x. This simplifies to 15 = 6 + x.
3. Next, you subtract 6 from both sides of the equation to solve for x: 15 - 6 = 6 + x - 6. This simplifies to 9 = x.

So, the correct solution is x = 9, not x = 21. It appears there was an error in your calculations when you reached x = 21. The correct solution is indeed x = 9.