Question

5) 2x - (4x - 5) = 15​

Answer 1

Ответ:

$2x - (4x - 5) = 15 \\ 2x - 4x + 5 = 15 \\ - 2x + 5 = 15 \\ - 2x = 15 - 5 \\ - 2x = 10 \\ x = - 5$

Answer 2

To solve the equation 2x - (4x - 5) = 15, you'll need to simplify and isolate the variable x. Here's how you can do it step by step:

1. Distribute the negative sign on the left side of the equation:

   2x - 4x + 5 = 15

2. Combine like terms on the left side of the equation:

   (2x - 4x) + 5 = 15 -2x + 5 = 15

3. Move the constant term 5 to the right side of the equation by subtracting 5 from both sides:

   -2x + 5 - 5 = 15 - 5 -2x = 10

4. Now, isolate x by dividing both sides by -2:

   (-2x) / (-2) = 10 / (-2) x = -5

So, the solution to the equation 2x - (4x - 5) = 15 is x = -5.