Question

Упростите выражение:-5(4b+3)-(18+b)+15(1+2b). Если можно,то расписывайте,пожалуйста!

Answer 1

-5(4b+3)-(18+b)+15(1+2b)=-20b-15-18+b+15+30b=11b+18

Answer 2

Simplifying the Expression

To simplify the expression -5(4b+3)-(18+b)+15(1+2b), we can follow the order of operations (PEMDAS/BODMAS) and apply the distributive property. Let's break it down step by step:

1. Start by simplifying the expressions within parentheses: - 4b+3 remains as is. - 1+2b remains as is.

2. Apply the distributive property to each term: - -5(4b+3) becomes -20b - 15. - 15(1+2b) becomes 15 + 30b.

3. Combine like terms: - -20b - 15 - (18 + b) + 15 + 30b

Now, let's simplify the expression further by combining like terms:

- Combine the terms with b: -20b - b + 30b becomes 9b. - Combine the constant terms: -15 - 18 + 15 becomes -18.

Therefore, the simplified expression is 9b - 18.

Answer

The simplified expression for -5(4b+3)-(18+b)+15(1+2b) is 9b - 18.

Please let me know if there's anything else I can help you with!