(17x-12x)/x-(10-x)/x

To simplify the expression \((17x - 12x)/x - (10 - x)/x\), we can follow these steps:

1. Start with the expression:

   \[ \frac{17x - 12x}{x} - \frac{10 - x}{x} \]

2. Simplify the first term:

   \[ \frac{17x - 12x}{x} = \frac{5x}{x} = 5 \quad (\text{as long as } x \neq 0) \]

3. Simplify the second term:

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

4. Now substitute these simplified terms back into the original expression:

   \[ 5 - \left(\frac{10}{x} - 1\right) \]

5. Distribute the negative sign:

   \[ 5 - \frac{10}{x} + 1 = 6 - \frac{10}{x} \]

6. Therefore, the simplified expression is:

   \[ 6 - \frac{10}{x} \]

So the final answer is:

\[ 6 - \frac{10}{x} \]