2х-4-5=0

To solve the equation \( 2x - 4 - 5 = 0 \), follow these steps:

1. Combine like terms: \[ 2x - 9 = 0 \]

2. Add 9 to both sides: \[ 2x = 9 \]

3. Divide both sides by 2: \[ x = \frac{9}{2} \]

So, the solution is: \[ x = 4.5 \]