Question

-0,4(x-7)+0,2(2x-9) -0,8(x-4)+0,4(2x-6)

Answer 1

Ответ:

.........................

Answer 2

Ответ:1


Пошаговое объяснение:
раскрываем скобки
-04, х+2,8 +0,2(2х-9)=
0,4х+2,8+0,4х-1,8
поскольку сумма двух противоположных чисел равна нулю удаляем их из выражения
(0,4 и 0,4)
2,8-1,8 =1
хорошего вам дня^^

Answer 3

To simplify the expression, you can distribute the coefficients and then combine like terms:

-0.4(x - 7) + 0.2(2x - 9) - 0.8(x - 4) + 0.4(2x - 6)

Let's simplify step by step:

-0.4(x - 7) = -0.4x + 2.8 0.2(2x - 9) = 0.4x - 1.8 -0.8(x - 4) = -0.8x + 3.2 0.4(2x - 6) = 0.8x - 2.4

Now, combine like terms:

(-0.4x + 2.8) + (0.4x - 1.8) + (-0.8x + 3.2) + (0.8x - 2.4)

Now, you can see that some terms cancel out:

(-0.4x + 0.4x - 0.8x + 0.8x) + (2.8 - 1.8 + 3.2 - 2.4)

The x terms cancel each other out, and the constants can be added together:

0x + 2.8 - 1.8 + 3.2 - 2.4

Now, simplify the constants:

2.8 - 1.8 + 3.2 - 2.4 = 2.0

So, the simplified expression is:

2.0