Question

2)9(-8а+7б)-13(-3а+4б)=

Answer 1

Ответ:

Пошаговое объяснение:

9(-8а+7b)-13(-3а+4b)= -72a+63b+39a-52b = -33a+11b

Answer 2

Пошаговое объяснение:

=-72а+63б+39а-52б=-33а+11б

Answer 3

To simplify the expression, you can distribute the numbers outside the parentheses into the parentheses and then combine like terms:

2 * 9(-8а+7б) - 13(-3а+4б)

First, distribute the numbers:

18(-8а+7б) - 13(-3а+4б)

Now, distribute the numbers inside the parentheses:

-144а + 126б - (-39а + 52б)

When you subtract a negative number, it's the same as adding its positive counterpart:

-144а + 126б + 39а - 52б

Now, you can combine like terms by adding or subtracting coefficients of the same variables:

(-144a + 39a) + (126b - 52b)

Simplify each part:

-105a + 74b

So, the simplified expression is:

-105a + 74b