Question

A+(3a-4)= и 7n-(5+2n) и 5(2+3x)=

Answer 1

Ответ:4(а-1)

5(n-1)

10+15x

Пошаговое объяснение:

Answer 2

Ответ:1. 3а2 - 4а

2. -(35n + 14n2)= -35n - 14n2

3. 10+15x

Пошаговое объяснение:после буквы будет стоять цифра то это степень

Answer 3

It looks like you provided a few mathematical expressions, and I'm happy to help you solve them. Let's work through each of them step by step:

1. A + (3a - 4) = ?

To solve this equation, first, combine the like terms (terms with 'a'):

A + 3a - 4 = ?

Next, combine the constants (numbers without variables):

(1 + 3)a - 4 = ?

Now, you can simplify the left side:

4a - 4 = ?

2. 7n - (5 + 2n) = ?

To solve this equation, distribute the negative sign into the parentheses:

7n - 5 - 2n = ?

Now, combine like terms (terms with 'n'):

(7 - 2)n - 5 = ?

Simplify the left side:

5n - 5 = ?

3. 5(2 + 3x) = ?

To solve this equation, distribute the 5 into the parentheses:

10 + 15x = ?

Now, the equation is simplified.

So, the solutions are:

1. A + (3a - 4) = 4a - 4
2. 7n - (5 + 2n) = 5n - 5
3. 5(2 + 3x) = 10 + 15x