Lots of letters and numbers
If you have letters together, like xy +2, it means you multiply
Unknowns are represented by letters
it means you're multiplying them.
it is easier to substitute them for letters because if we used numbers then constants (numbers in algebra that don't have letters) would get mixed up with the algebraic letters. also makes things easier to read and to understand. also, if you don't have all the information, you can use letters to represent what you don't know
That is called "algebra".That is called "algebra".That is called "algebra".That is called "algebra".
algebra
Algebra uses letters called variables
It is algebra that represents numbers by letters which are called variables.
That is called algebra.
Algebra is one.
Algebra is the branch of mathematics that uses letters called variables in place of numerals. Algebra is an extremely important foundation of every branch of mathematics.
Basic Algebra is where letters called variables are used in place of numerals
Algebra
Algebra
Algebra.
Algebra