Question

-7(4-b)+2(-3b-3)-8(-9+b)

Answer 1

Ответ:

Раскроем скобки и сгруппируем слагаемые:

-7(4-b) + 2(-3b-3) - 8(-9+b) = -28 + 7b - 6b - 6 + 72 - 8b

= (-28 - 6 - 72) + (7b - 6b - 8b) = -106 - 7b

Таким образом, -7(4-b) + 2(-3b-3) - 8(-9+b) = -106 - 7b.

Answer 2

Пошаговое объяснение:

-28+7b-6b-6+72-8b=-7b+38

Answer 3

Let's simplify the expression step by step:

-7(4 - b) + 2(-3b - 3) - 8(-9 + b)

First, let's simplify the expressions within the parentheses:

-7 * (4 - b) = -7 * 4 + 7 * b = -28 + 7b

2 * (-3b - 3) = -6b - 6

-8 * (-9 + b) = 72 - 8b

Now we can rewrite the expression:

-28 + 7b + (-6b - 6) + (72 - 8b)

Next, let's combine like terms:

Combine the terms with 'b': 7b - 6b - 8b = -7b

Combine the constant terms: -28 - 6 + 72 = 38

The simplified expression is: -7b + 38