0,5x+0,15=0

To solve the equation \(0.5x + 0.15 = 0\), follow these steps:

1. Subtract \(0.15\) from both sides of the equation: \[ 0.5x = -0.15 \]

2. Divide both sides by \(0.5\) to isolate \(x\): \[ x = \frac{-0.15}{0.5} \]

3. Calculate the right side: \[ x = -0.3 \]

So, the solution to the equation \(0.5x + 0.15 = 0\) is \(x = -0.3\).