Question

|3х-9|-7•|9-3х| при х=8 ​

Answer 1

Ответ:-90

Пошаговое объяснение:

|3х - 9|—7•|9-3х| при х=8Якщо х=8, то |3х - 9|—7•|9-3х|==|3•8 - 9|—7•|9-3•8| == 15-7•15==15-105= -90

Answer 2

Ответ:

24-9-7*|9-24|

ответ -90

Пошаговое объяснение:

15-7*15

Answer 3

To find the value of the expression |3x - 9| - 7 * |9 - 3x| when x = 8, we substitute the value of x into the expression and perform the calculations.

Let's start by substituting x = 8 into the expression:

|3(8) - 9| - 7 * |9 - 3(8)|

Simplifying the expression inside the absolute value signs:

|24 - 9| - 7 * |9 - 24|

|15| - 7 * |-15|

Since both 15 and -15 are positive, we can remove the absolute value signs:

15 - 7 * 15

Now we can perform the multiplication:

15 - 7 * 15 = 15 - 105 = -90

Therefore, when x = 8, the value of the expression |3x - 9| - 7 * |9 - 3x| is -90.