That is called algebra.
Basic Algebra is where letters called variables are used in place of numerals
Algebra
Algerbra
Algebra
Algebra.
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
Algerbra
Algebra
Algebra.
Algebra
It is algebra that uses letters to represent numbers and also Roman numerals.
algebra
Algebra uses letters to represent unknown numbers.
Algebra. The word comes from the Arabic, al-jabr.
Mathematical logic and proof theory (a branch of mathematical logic) for proof