Question

-2(2х+1)=1-х решите уравнение

Answer 1

$- 2(2x + 1) = 1 - x \\ - 4x - 2 = 1 - x \\ - 4x + x = 1 + 2 \\ - 3x = 3 \\ x = - 1$

Ответ:-1

Answer 2

Ответ: -1

Пошаговое объяснение:

(Раскрываем скобки)

-4х - 2 = 1 - х

(переносим в другую часть, меняя знаки)

-4x + x = 2 +1

-3х = 3

(делим обе части на -3)

х = -1

Answer 3

To solve the given equation, follow these steps:

Step 1: Distribute the -2 on the left side of the equation: -2(2x + 1) = 1 - x

-4x - 2 = 1 - x

Step 2: Get all the x terms on one side and the constant terms on the other side. To do this, add 4x to both sides: -4x - 2 + 4x = 1 - x + 4x

(-4x + 4x) - 2 = 1 + 3x

0x - 2 = 1 + 3x

-2 = 1 + 3x

Step 3: Now, get all the constant terms on one side and the x term on the other side. To do this, subtract 3x from both sides: -2 - 3x = 1 + 3x - 3x

-3x - 2 = 1

Step 4: Finally, isolate the x term by moving the constant term to the other side. To do this, add 2 to both sides: -3x - 2 + 2 = 1 + 2

-3x = 3

Step 5: Divide both sides by -3 to find the value of x: x = 3 / -3

x = -1

So, the solution to the equation is x = -1.