Question

​∣​4 • ∣х∣-7∣=9 ​​ ​​ ​​ ​​

Answer 1

|4*|х|-7|=9

4х-7=9

4х=9+7

4х=16

х=4

Answer 2

Ответ:

Пср8мщпсппрллпк

Пошаговое объяснение:

Вшеснмрсшчм аарслорнавемлищра апмгссггигмснгши о

Нига

Answer 3

To solve this equation, we need to isolate the absolute value term and then consider two cases, one where the argument of the absolute value is positive and one where it is negative.

Starting with the given equation:

|4•x|-7•|x|=9

We can add 7•|x| to both sides to isolate the absolute value term:

|4•x| = 7•|x| + 9

Now we consider two cases:

Case 1: x ≥ 0

If x is non-negative, then |x| = x, so we can substitute x for |x| in the equation:

|4•x| = 7•x + 9

Simplifying, we get:

4•x = 7•x + 9 -3•x = 9 x = -3

However, since x ≥ 0, there is no solution in this case.

Case 2: x < 0

If x is negative, then |x| = -x, so we can substitute -x for |x| in the equation:

|4•x| = 7•(-x) + 9

Simplifying, we get:

4•x = -7•x + 9 11•x = 9 x = 9/11

Therefore, the only solution is x = 9/11.