Which algebraic equation represents the words:

Twenty percent of your grade is 80 points. What was your grade?

20/80 = x

20x = 80

.20x = 80

.20 = 80x

None of the provided equations accurately represent the given words. The correct equation would be:

0.20x = 80

The correct equation would be:

0.20x = 80

Where x represents the grade you are trying to find.