Question

5,8a-7,4b-7,2a+6,9b0

Answer 1

Решение:

Умножаем 6,9b на :
5,8a-7,4-7,2a+0

Отнимаем подобные члены:
-1,4a-7,4b


Ответ:
-1,4a-7,4b

Answer 2

Ответ:

5,8a-7,4b-7,2a+6,9b0=-1,2а-0,5b

1) 5,8a-7,2a=-1,4а

2)-7,4b+6,9b=-0,5

Answer 3

It seems like you've provided an expression that contains variables a and b. However, the expression appears to be incomplete and contains some formatting issues.

Let's correct the formatting and simplify the expression:

5.8a - 7.4b - 7.2a + 6.9b

Now, let's combine like terms:

(5.8a - 7.2a) + (-7.4b + 6.9b)

Simplify the coefficients:

-1.4a - 0.5b

So, the simplified expression is:

-1.4a - 0.5b