Respuesta :

[tex]\large\begin{array}{I} \mathtt{ \dfrac{7x}{5}- \dfrac{x}{5} = \dfrac{7x-x}{5}= \dfrac{6x}{5} } \end{array}[/tex]

The answer is D.

Hope it helps!
The answer is D. 6X/5

I hope this helps. :)