Question

1) – 3,2х ∙(-2у)= 2) 7х – у - х - 11y= 3) х + (х – 5) – (3 + х)= 4) -5∙(x - 1) + 4∙(2 - x)= СРОЧНООО!!!!!!

Answer 1

Ответ:

1) 6,4 ху

2) 6(х-2у)

3)х-8

4)-9х+13

Пошаговое объяснение:

Answer 2

1) – 3,2х ∙(-2у)= 6,4x y

2) 7х – у - х - 11y= 6(x-2y)

3) х + (х – 5) – (3 + х)= x-8

4) -5∙(x - 1) + 4∙(2 - x)=-9x+13

готово

Answer 3

Sure, let's solve these equations step by step:

1. –3.2x ∙ (-2y)

To simplify this expression, we'll multiply -3.2x with -2y:

–3.2x * (-2y) = 6.4xy

So the answer to the first equation is 6.4xy.

2. 7x – y - x - 11y

To simplify this expression, let's combine like terms:

7x - x = 6x -y - 11y = -12y

Now the expression becomes:

6x - 12y

So the answer to the second equation is 6x - 12y.

3. x + (x – 5) – (3 + x)

To simplify this expression, we'll remove the parentheses and combine like terms:

x + x - 5 - 3 - x

Now, combining like terms:

x + x - x = x -5 - 3 = -8

So the expression simplifies to:

x - 8

The answer to the third equation is x - 8.

4. -5(x - 1) + 4(2 - x)

To simplify this expression, let's distribute the numbers:

-5 * x + 5 * 1 + 4 * 2 - 4 * x

Now, combining like terms:

-5x + 5 + 8 - 4x

Combine the x terms:

-5x - 4x = -9x

Now, combine the constants:

5 + 8 = 13

So the expression simplifies to:

-9x + 13

The answer to the fourth equation is -9x + 13.

Remember, when you need to solve equations or expressions, it's important to perform the operations following the order of operations (PEMDAS or BODMAS), which stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). This ensures the correct result.