Question

|x-5|+|x-18|-78,при х=7

Answer 1

Ответ:

решение смотри на фотографии

Пошаговое объяснение:

Answer 2

Ответ:

|7-5|+|7-18|-78 = -65

Пошаговое объяснение:

|x-5|+|x-18|-78;          При х = 7

Подставляем х:

|7-5| + |7-18|-78 = |2| + |-11| - 78 = 2 + 11 - 78 = 13 - 78 = -65        

Answer 3

To evaluate the expression |x-5| + |x-18| - 78 at x = 7, we substitute the value of x into the expression and perform the calculations.

|x-5| + |x-18| - 78, when x = 7

First, let's evaluate the absolute values: |x-5| = |7-5| = |2| = 2 |x-18| = |7-18| = |-11| = 11

Substituting these values back into the expression: 2 + 11 - 78

Next, we simplify the expression: 2 + 11 = 13

Finally: 13 - 78 = -65

Therefore, when x = 7, the expression |x-5| + |x-18| - 78 evaluates to -65.