Question

−8(3−b)+3(−3b−3)−6(−9+b).

Answer 1

А какое задание?
Если просто упростить, то:
- 8(3 - b) + 3(- 3b - 3) - 6(- 9 + b) = - 24 + 8b - 9b - 9 + 54 - 6b = 21 - 7b.
Найти «b», то:
21 - 7b = 0
7b = 21
b = 21 : 7
b = 3

Answer 2

To simplify the expression, let's expand and simplify each term:

-8(3 - b) + 3(-3b - 3) - 6(-9 + b)

First, distribute -8 to the terms inside the parentheses: -8 * 3 + 8 * b + 3(-3b - 3) - 6(-9 + b)

Simplify the first term: -24 + 8b + 3(-3b - 3) - 6(-9 + b)

Next, distribute 3 to the terms inside the parentheses: -24 + 8b - 9b - 9 - 6(-9 + b)

Simplify the second term: -24 + 8b - 9b - 9 + 54 - 6b

Combine like terms: (8b - 9b - 6b) - 24 - 9 + 54

Combine like terms again: -7b - 24 - 9 + 54

Simplify the constants: -7b + 21

Therefore, the simplified expression is -7b + 21.