It seems like you're trying to combine or simplify a mathematical expression. However, the expression you've provided lacks clarity due to the placement of operations and fractions. Could you please clarify or provide additional context? It seems you may be trying to express a single rational expression.

If we assume that you meant:

\[
\frac{3x + 8}{x} - \frac{13x + 8}{x} - \frac{1}{x},
\]

then we can simplify it. Let's break it down step-by-step:

1. Combine the fractions:
\[
\frac{3x + 8 - (13x + 8) - 1}{x}
\]
2. Simplify the numerator:
\[
3x + 8 - 13x - 8 - 1 = 3x - 13x + 8 - 8 - 1 = -10x - 1
\]
3. Put the result back over the common denominator:
\[
\frac{-10x - 1}{x}
\]

So the result is:

\[
-10 - \frac{1}{x}
\]

If this interpretation is not what you intended, please provide clarification or more context for accurate assistance!