| Additive Inverse Property | states that every real number added to its additive inverse (or opposite) will equal zero: For all real numbers a, a + (-a) = 0; also called Inverse Property of Addition |
| coefficient | a number that multiplies a variable |
| equation | a statement that describes the equality of two expressions by connecting them with an equals sign |
| Inverse Operations | operations that undo or cancel one another, such as addition/subtraction and multiplication/division |
| Multiplicative Inverse Property | states that any number multiplied by 1 over that number equals 1: For all real numbers a, |
| Property of Equality | states that the equality of an equation is maintained when both sides have the same value added, subtracted, multiplied, or divided |
| variable | a symbol that represents an unknown value |
; also called Inverse Property of Multiplication