Question

|х+2|=9 решить уравнение

Answer 1

Ответ:

7 и -11

Пошаговое объяснение:

x+2=9       x=7

x+2=-9     x=-11

Answer 2

Ну если надо .........

Answer 3

To solve the absolute value equation |х+2| = 9, we need to consider both the positive and negative cases of the absolute value expression.

Case 1: х + 2 = 9 In this case, the expression inside the absolute value bars is positive, so we can simply remove the absolute value bars and solve for х:

х + 2 = 9

Now, isolate х by subtracting 2 from both sides:

х = 9 - 2 х = 7

Case 2: -(х + 2) = 9 In this case, the expression inside the absolute value bars is negative, so we need to negate it by multiplying both sides by -1 before removing the absolute value bars:

-(х + 2) = 9

Now, distribute the negative sign:

-х - 2 = 9

Next, isolate х by adding 2 to both sides:

-х = 9 + 2 -х = 11

Now, divide both sides by -1 to solve for х:

х = -11

So, the solutions to the absolute value equation are х = 7 and х = -11.