Question

5/9(3.6а-З 3/5b)-3.5(4/7a-0.2b)

Answer 1

= 5/9 * 3,6а - 5/9 * 18/5b - 3,5 * 4/7а + 3,5 * 0,2b =
= 2a - 2b - 2a + 0,7b =
= (2a - 2a) + (0,7b - 2b) = - 1,3b
Ответ: - 1,3b.

Answer 2

Решение на фото, надеюсь понятно)

Answer 3

To simplify the given expression, let's perform the calculations step by step:

1. Distribute the coefficients: 5/9 * (3.6a - 3 * 3/5b) - 3.5 * (4/7a - 0.2b)

2. Simplify the terms inside the parentheses: 5/9 * (3.6a - 9/5b) - 3.5 * (4/7a - 0.2b)

3. Distribute the remaining coefficients: (5/9 * 3.6a - 5/9 * 9/5b) - (3.5 * 4/7a - 3.5 * 0.2b)

4. Simplify the terms further: (2a - 1b) - (2a - 0.7b)

5. Combine like terms: 2a - b - 2a + 0.7b

6. Combine the remaining terms: -0.3b

The simplified expression is: -0.3b