26x-0,8=7

To solve the equation \( 26x - 0.8 = 7 \), follow these steps:

1. Add 0.8 to both sides of the equation: \[ 26x - 0.8 + 0.8 = 7 + 0.8 \] This simplifies to: \[ 26x = 7.8 \]

2. Divide both sides by 26: \[ x = \frac{7.8}{26} \]

3. Calculate the value: \[ x = 0.3 \]

So the solution is: \[ x = 0.3 \]