What is elementary algebra?

Elementary Algebra

Elementary algebra introduces the basic rules and operations of algebra, one of the main branches of mathematics. Whereas arithmetic deals with specific numbers and operators (e.g +,-,*,/) (e.g. 3 + 2 = 5), algebra introduces variables, which are letters that represent non-specified numbers (e.g. 3a + 2a = 5a). Algebra also defines the rules and conventions of how it is written (called algebraic notation). For example, the multiplication symbol, is sometimes replaced with a dot, or even omitted completely, because its context makes its use obvious (e.g. 3 × a may be written 3a).

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Some articles on elementary algebra:

History Of Elementary Algebra
... Algebra is a branch of mathematics concerning the study of structure, relation, and quantity ... Elementary algebra is the branch that deals with solving for the operands of arithmetic equations ... Modern or abstract algebra has its origins as an abstraction of elementary algebra ...
Common Logical Connectives - History of Notations
... ambiguity coming from the fact that the + of ordinary elementary algebra is an exclusive or when interpreted logically in a two-element ring punctually in the history a + together ... True the symbol 1 comes from Boole's interpretation of logic as an elementary algebra over the two-element Boolean algebra other notations include to ...
Equation Solving - Methods of Solution - Elementary Algebra
... functions of a single real-valued unknown, say x, such as can be solved using the methods of elementary algebra ...
Elementary Algebra - Solving Algebraic Equations - Relation Between Solvability and Multiplicity
... When the multiplicity is only partial (meaning that for example, only the left hand sides of the equations are multiples, while the right hand sides are not or not by the same number) then the system is unsolvable ... For example, in the second equation yields that which is in contradiction with the first equation ...

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