Question

7x−7|y−9| при x=−1, y=−2.​

Answer 1

Ответ:

подставляем

7*(-1)-7|-2-9| = -7-7 * 11 = -7 -77 = -84

Пошаговое объяснение:

Answer 2

To evaluate the expression $7x - 7|y - 9|$ when $x = -1$ and $y = -2$, you substitute these values into the expression and calculate the result step by step.

1. Substitute $x = -1$ and $y = -2$ into the expression:

$7(-1) - 7|(-2) - 9|$

2. Calculate the absolute value inside the brackets:

$= 7(-1) - 7|(-2 - 9)|$ $= -7|-11|$

3. Calculate the absolute value:

$= -7 \times 11$ $= -77$

Therefore, the value of the expression $7x - 7|y - 9|$ when $x = -1$ and $y = -2$ is $-77$.