Can you come up with denominators that contain variables and aren't equal that would require you to change only one denominator explain

If 3x+8=3x+8 is it one solution or no solution

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction