Question

1) (х+13у-1)-(7у+26х+6,5) 2) (7а-5в)-7(2а-в) спростить вираз, пожалуста терміново!!​

Answer 1

Ответы: -25х + 6у - 7,5, -7а+2b

Answer 2

1. (х+13у-1)-(7у+26х+6.5)

Let's simplify the expression step by step:

First, distribute the negative sign to each term inside the parentheses: х + 13у - 1 - 7у - 26х - 6.5

Now, let's combine like terms: (х - 26х) + (13у - 7у) - 1 - 6.5

Simplifying further: -25х + 6у - 7.5

Therefore, the simplified expression is -25х + 6у - 7.5.

2. (7а - 5в) - 7(2а - в)

Let's simplify the expression step by step:

First, distribute the 7 to each term inside the parentheses: 7а - 5в - 14а + 7в

Now, let's combine like terms: (7а - 14а) + (-5в + 7в)

Simplifying further: -7а + 2в

Therefore, the simplified expression is -7а + 2в.