What is a Term?
The definition of a term within an algebraic expression.
Two examples using Parentheses in Algebra
Two examples evaluating the effect of parentheses on algebraic expressions.
Solving an Equation with a Fraction Containing Different Denominators
Solving an equation with two fractions containing different denominators.
Multiplying Two Expressions
Multiplying the contents of two sets of parentheses demonstrates how algebra provides the tools to break the most complicated problem into simple, sequential steps.
Introduction to a Third Variable: RT=E
An example of an algebraic expression that uses three variables.
Simplify first by Combining Like Terms
Equations can sometimes be simplified to present the same information in a form that is easier to work with. Simplify whenever possible by combining like terms.
Order of Radicals and Exponents, The
In algebraic expressions, radicals and exponents are completed first.
Treating the Numerator and the Denominator as a Package
Numerators and denominators are packages that cannot be broken up, and must first be simplified.
Examples showing the Order of Operations
The order of operations is demonstrated in three examples.
Deciding Between Substitution and Elimination
How to decide whether substitution or elimination is the better method for solving a system of equations in which one equation has been solved for a variable.