Question

2,9- (5,2a+3,8) + (6,1 -2,3a)​

Answer 1

Ответ:

2,9- (5,2a+3,8) + (6,1 -2,3a)​=

2,9-5,2а-3,8+6,1-2,3а=

(2,9-3,8+6,1)+(-2,3а-5,2а)=

5,2-7,5а

Вот ответ!!!

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Answer 2

It seems like you want to perform some arithmetic operations with the given expressions. Let's simplify the expression step by step:

1. First, distribute the negative sign to both terms inside the first set of parentheses:

   2.9 - (5.2a + 3.8)

2. Now, distribute the negative sign to both terms inside the second set of parentheses:

   (6.1 - 2.3a)

3. Perform the subtraction within each set of parentheses:

   2.9 - 5.2a - 3.8 + 6.1 - 2.3a

4. Group like terms:

   (-5.2a - 2.3a) + (2.9 - 3.8 + 6.1)

5. Combine the like terms within each set of parentheses:

   (-7.5a) + (5.2)

6. Finally, combine the two sets of parentheses:

   -7.5a + 5.2

So, the simplified expression is:

-7.5a + 5.2