Subtract the rational expressions. $$ \frac{x^{2}-x}{7 x}-\frac{9 x^{2}-x}{7 x} $$

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Calculate or simplify the expression $$ (x^{2}-x)/7x-(9x^{2}-x)/7x $$.
Simplify the expression by following steps:
- step0: Solution:
  $$\frac{\left(x^{2}-x\right)}{7x}-\frac{\left(9x^{2}-x\right)}{7x}$$
- step1: Remove the parentheses:
  $$\frac{x^{2}-x}{7x}-\frac{9x^{2}-x}{7x}$$
- step2: Divide the terms:
  $$\frac{x-1}{7}-\frac{9x^{2}-x}{7x}$$
- step3: Divide the terms:
  $$\frac{x-1}{7}-\frac{9x-1}{7}$$
- step4: Transform the expression:
  $$\frac{x-1-\left(9x-1\right)}{7}$$
- step5: Subtract the terms:
  $$\frac{-8x}{7}$$
- step6: Rewrite the fraction:
  $$-\frac{8x}{7}$$
The result of subtracting the rational expressions is $$-\frac{8x}{7}$$.
The result is $$-\frac{8x}{7}$$.

Subtract the rational expressions.

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