2х+1 решить

To solve the equation 2x + 1 = 0, you need to isolate the variable x. Here's how you can do it:

1. Start with the equation: 2x + 1 = 0.
2. Subtract 1 from both sides to get rid of the constant term: 2x = -1.
3. Divide both sides by 2 to isolate x: x = -1/2.

So, the solution to the equation 2x + 1 = 0 is x = -1/2.