Question

1) (х+3,2)-(х+4,5)2) 1,4(а-2)-(6-2а)​

Answer 1

Ответ:

5+7=12

6×4=24

9×8=72

1+4=5

Answer 2

Ответ:

Пошаговое объяснение:

x+3,2-х-4,5=-1,3

1,4а-2,8-6+2a=3,4а-8,8

Answer 3

It appears that you want to perform some arithmetic operations with expressions. Let's simplify each expression step by step:

1. (x + 3,2) - (x + 4,5):

It seems like you have comma-separated decimal numbers in your expressions. To simplify this, we'll assume that the commas are placeholders for decimal points. So, the expression becomes:

(x + 3.2) - (x + 4.5)

Now, let's simplify it:

x + 3.2 - x - 4.5

Now, you can simplify further:

(x - x) + (3.2 - 4.5)

The x terms cancel each other out:

0 + (-1.3)

So, the simplified expression is -1.3.

2. 1.4(a - 2) - (6 - 2a):

Now, let's simplify this expression:

1.4(a - 2) - (6 - 2a)

Distribute the 1.4 on the left side:

1.4a - 2.8 - (6 - 2a)

Now, distribute the negative sign on the right side:

1.4a - 2.8 - 6 + 2a

Now, collect like terms:

(1.4a + 2a) + (-2.8 - 6)

Combine the 'a' terms:

3.4a - 2.8 - 6

Combine the constants:

3.4a - 8.8

So, the simplified expression is 3.4a - 8.8.