To multiply a sum by a number, multiply each number in parentheses by the number outside the parentheses
Expressions that have the same value
The numerical part of a term that contains a variable
A term without a variable.
Expressions that contain the same power, such as 2n and 5n
When plus or minus signs separate an algebraic expression into parts, each part is a term.
An algebraic expression in simplest form, has no like terms and no parentheses
Simplifying the Expression
To use distribution to combine like terms
A mathematical sentence that contains an equal sign (=)
Two or more equations with the same solution
Operation that undoes another, such as addition or subtraction
A value for the variable that makes an equation true.
Solving the Equation
The process of finding a solution
An equation that contains two operation
An expression that contains sums and/or products of variables and numbers