Question

—7х + |5х +14| при х = -9.​

Answer 1

Ответ: 94

Пошаговое объяснение:

- 7x + I5x + 14I =

- 7 * (-9) + I5 * (-9) + 14I =

63 + I-45 + 14I =

63 + I-31I =

63 + 31 =

94

Answer 2

To evaluate the expression -7x + |5x + 14| at x = -9, we need to substitute -9 for x in the expression and perform the calculations step by step.

Given expression: -7x + |5x + 14| Substitute x with -9: -7(-9) + |5(-9) + 14|

Now let's calculate each part:

-7(-9) = 63 5(-9) + 14 = -45 + 14 = -31

Now we have: 63 + |-31|

The absolute value of -31 is 31, so the expression becomes:

63 + 31 = 94

Therefore, when x = -9, the value of the expression -7x + |5x + 14| is 94.

Answer 3

To evaluate the expression -7x + |5x + 14| at x = -9, you need to substitute the value of x into the expression and then calculate it.

Given the expression: -7x + |5x + 14|

Substitute x = -9: -7(-9) + |5(-9) + 14|

Simplify: 63 + |-45 + 14|

Calculate the value inside the absolute value: 63 + |-31|

Since the absolute value of -31 is 31: 63 + 31 = 94

So, when x = -9, the value of the expression -7x + |5x + 14| is 94.