Luna had a 50$ when she got to the carnival. after riding 12 rides, she had 26$ left. what equation can be used to represent this situation?

Let's see ... We don't know how much the rides cost, so we can use x to represent that.

26=50-12x

This is the equation. There we go!

Now, if you want to take it a step further and solve for x:

26-50=50-50-12x

-24=-12x

24 = 12x

x=2

So each ride cost $2.