The foundations of algebra are where variables are used to replace numbers. Variables will then be manipulated in many ways to solve equations and expressions to derive unknown quantities, such as bank interest, distance, volume of containers, and sale prices. Algebra is constructive in stating a mathematical equation and relationship by using letters, or other symbols, representing the unknown quantities.
“Algebra (Definition, Basics, Branches, Facts, Examples) | What is Algebra?”. 2022. BYJUS. https://byjus.com/maths/algebra/.
⭐ “Foundations Of Algebra”. 2022. settheory.net. http://settheory.net/algebra/.
The featured image on this page is from “Raphael School of Athens.jpg – Wikipedia”. 1511. en.wikipedia.org. https://en.wikipedia.org/wiki/File:Raphael_School_of_Athens.jpg.
⭐ I suggest that you read the entire reference. Other references can be read in their entirety but I leave that up to you.