Algebra involves the use of letters in mathematics. These letters are unknowns and can represent either a single unknown number or a range of unknown numbers. Sometimes algebraic expressions can be ...

The lesson covers simplifying algebraic expressions by collecting like terms. Algebraic expressions are symbols or combinations of symbols used in algebra, containing one or more numbers, variables, ...

THE object of this note is to explain a process of simplifying multiplication. To most people multiplication by 2, 3, 4, 5 is sufficiently easy (and not worth ...