Question

-8(6,4а-3,9)+9(7,4а-5,3)

Answer 1

Пошаговое объяснение:

-8(6,4a-3,9)+9(7,4a-5,3)=

= - 51,2a+31,2+66,6a-47,7=

=15,4a - 16,5

Answer 2

Ответ:

15,4а-16,5

Пошаговое объяснение:

-8(6,4а-3,9)+9(7,4а-5,3)

-15,2а + 31,2 + 66,6а - 47,7

15,4а-16,5

Answer 3

To simplify the expression, let's distribute the coefficients:

-8(6,4a - 3,9) + 9(7,4a - 5,3)

Multiplying each term inside the parentheses by the corresponding coefficient, we get:

-8 * 6,4a + 8 * 3,9 + 9 * 7,4a - 9 * 5,3

Simplifying further, we have:

-51,2a + 31,2 + 66,6a - 47,7

Combining like terms, we can add the coefficients of 'a' and the constant terms separately:

(-51,2a + 66,6a) + (31,2 - 47,7)

This simplifies to:

15,4a - 16,5

Therefore, the simplified expression is 15,4a - 16,5.