Algebra

Algebra

Algebra is the branch of mathematics in which the operations and procedures of addition and multiplication are applied to variables rather than specific numbers.
Algebra is concerned with certain operations on numbers, and it is necessary to be precise about what a number is. The numbers dealt with are either the natural numbers, the rational numbers, the real numbers, or the complex numbers. The essential property that these numbers have is that they can be added and multiplied by well-established rules. [RA] {EB}