Algebra is the branch of mathematics in which the operations and procedures of addition
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
dealt with are either the natural
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.
This Web Page Sums It Up!
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