Question

(a + b). 5 + 9a + 3b13. (a + b) - 7b + 4a6. (x + a) – 5a30x – (5x + 4x)​

Answer 1

Ответ:

Пошаговое объяснение:

(a + b)*5 + 9a + 3b = 5a + 5b + 9a + 3b = 14a + 8b

13*(a + b) - 7b + 4a = 13a + 13b - 7b + 4a = 17a + 6b

6*(x + a) - 5a = 6x + 6a - 5a = 6x + a

30x - (5x + 4x) = 30x - 5x - 4x = 21x

Answer 2

It looks like you've provided a set of mathematical expressions. Let me simplify each expression for you:

1. $(a + b) \cdot 5 + 9a + 3b$

   Distribute the 5: $5a + 5b + 9a + 3b$

   Combine like terms: $14a + 8b$

2. $13 \cdot (a + b) - 7b + 4a$

   Distribute the 13: $13a + 13b - 7b + 4a$

   Combine like terms: $17a + 6b$

3. $(x + a) - 5a$

   Remove parentheses: $x + a - 5a$

   Combine like terms: $x - 4a$

4. $30x - (5x + 4x)$

   Combine like terms inside the parentheses: $30x - 9x$

   Combine like terms: $21x$

If you have any further questions or if there's anything else I can help you with, feel free to ask!