Question

9-|x|=18 решите уравнение

Answer 1

9-|х|=18
|х|=9-18=-9
Модуль- это обязательно неторицательное число, поэтому тут ответ:
∅.
УДАЧИ ВАМ ВО ВСЁМ)))!!!

Answer 2

To solve the equation |x| = 18, we need to consider both the positive and negative cases for x. The absolute value function |x| simply returns the positive value of x if x is positive or zero, and the negative value of x if x is negative. In this case, we have:

1. x is positive or zero: If |x| = x, then the equation becomes: x = 18

2. x is negative: If |x| = -x, then the equation becomes: -x = 18

Let's solve each case separately:

Case 1: x is positive or zero x = 18

Case 2: x is negative -x = 18

To find the value of x in Case 2, we can multiply both sides of the equation by -1 to isolate x:

x = -18

So, there are two solutions to the equation |x| = 18: x = 18 and x = -18