Question

6) 0,9(a – 3b) - 0,2(5b – 3a) - 1,7b;

Answer 1

Ответ:

Объяснение:

0,9a-2,7b-1b+0,6a-1,7b

Answer 2

To simplify the expression $0.9(a - 3b) - 0.2(5b - 3a) - 1.7b$, let's follow these steps:

1. Distribute the coefficients within the parentheses.
2. Combine like terms.

Let's start by distributing the coefficients:

$0.9(a) - 0.9(3b) - 0.2(5b) + 0.2(3a) - 1.7b$

Now, we can simplify each term:

$0.9a - 2.7b - 1.0b + 0.6a - 1.7b$

Next, let's combine like terms:

$0.9a + 0.6a - 2.7b - 1.0b - 1.7b$

Combine $a$ terms and $b$ terms separately:

$1.5a - 5.4b$

So, the simplified expression is $1.5a - 5.4b$.