Here’s an interesting and accessible read about why we tend towards the variable “x” in algebra. Stay tuned at the bottom of the page for some other interesting math facts, including where we get the word “algorithm”.
Find the article here: Why We Use “x” as the Unknown in Mathematics (Gizmodo)
BADGING: Read the entire article. Pick 3 mathematical terms or ideas that look familiar to you and explain in complete sentences where we got them from.