26x-0,8=7

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

1. First, isolate the term with \(x\) by adding \(0.8\) to both sides of the equation:

\[ 26x - 0.8 + 0.8 = 7 + 0.8 \] \[ 26x = 7.8 \]

2. Next, divide both sides by \(26\) to solve for \(x\):

\[ x = \frac{7.8}{26} \]

3. Now, perform the division:

\[ x = 0.3 \]

So, the solution is:

\[ \boxed{0.3} \]