Question

2,5 • /2x - 3) - 13 = -0,5​

Answer 1

Ответ:

2,5*(2х-3)-13=-0,5

5х-7,5-13=-0,5

5х=-0,5+7,5+13

5х=20

х=20:5

х=4

Answer 2

It seems like you want to solve the equation:

2.5 / (2x - 3) - 13 = -0.5

To solve for x, you'll want to isolate the variable on one side of the equation. Here's how you can do it step by step:

1. Start by adding 13 to both sides of the equation to get rid of the -13 on the left side:

   2.5 / (2x - 3) - 13 + 13 = -0.5 + 13

   2.5 / (2x - 3) = 12.5

2. Now, you want to isolate (2x - 3) in the denominator. To do that, you can multiply both sides of the equation by (2x - 3):

   (2x - 3) * (2.5 / (2x - 3)) = 12.5 * (2x - 3)

   The (2x - 3) terms on the left side cancel out, leaving you with:

   2.5 = 12.5 * (2x - 3)

3. Next, divide both sides of the equation by 12.5 to solve for (2x - 3):

   2.5 / 12.5 = (12.5 * (2x - 3)) / 12.5

   0.2 = 2x - 3

4. Now, add 3 to both sides of the equation to isolate 2x:

   0.2 + 3 = 2x - 3 + 3

   3.2 = 2x

5. Finally, divide both sides by 2 to solve for x:

   3.2 / 2 = (2x) / 2

   x = 1.6

So, the solution to the equation is:

x = 1.6