Question

7,4а+2,6b-(2,5а-3,7b)

Answer 1

=7,4а + 2,6b - 2,5a + 3,7b = 4,9a+6,3b

Answer 2

Сначала открывает скобки 7,4а+2,6b-2,5a+3,7b 7,4a-2,5a=4,9a 2,6b+3,7b=6,3b 4,9a+6,3b Ответ:4,9а+6,3b

Answer 3

To simplify the expression, we can first distribute the negative sign to the terms inside the parentheses:

7,4a + 2,6b - 2,5a + 3,7b

Then we can combine like terms by adding the coefficients of a and b separately:

(7,4a - 2,5a) + (2,6b + 3,7b)

Simplifying the expressions in parentheses:

4,9a + 6,3b

Therefore, the simplified expression is:

4,9a + 6,3b.