Solve. For Exercises 83 and $84,$ see the second Concept Check in this section, for Exercises 85 and $86,$ see the third Concept Check.
Which of the expressions are equivalent to $\frac{-2+x}{x} ?$
a. $\frac{2-x}{-x}$
b. $-\frac{2-x}{x}$
c. $\frac{x-2}{x}$
d. $\frac{x-2}{-x}$