Question

2(0,2х-3)-8(0,7х-4)=39 ​

Answer 1

Ответ:

2(0,2х - 3) - 8(0,7х - 4) = 39

раскрываем скобки

0,4х - 6 - 5,6х + 32 = 39

-5,2х + 26 = 39

-5,2х = 39 - 26

-5,2х = 13

х = -2.5

Ответ: -2,5

Answer 2

Ответ:

0,4х - 6 - 5.6х + 32 = 39

-5.2х + 26 = 39

-5.2х = 13

х = 13/-5.2

х = -2.5

Ответ: -2.5

Пошаговое объяснение:

Answer 3

To solve the equation 2(0,2x-3) - 8(0,7x-4) = 39, let's simplify the expression and solve for x.

Expanding the brackets:

2(0,2x-3) - 8(0,7x-4) = 39 (0,4x-6) - (5,6x-32) = 39 0,4x-6 - 5,6x+32 = 39 0,4x - 5,6x - 6 + 32 = 39 -5,2x + 26 = 39

Now, let's isolate the x term by moving the constants to the other side:

-5,2x + 26 = 39 -5,2x = 39 - 26 -5,2x = 13

Divide both sides of the equation by -5,2 to solve for x:

x = 13 / -5,2 x = -2.5

Therefore, the solution to the equation is x = -2.5.