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# Expressions & Equati

### Vocabulary for Expressions and Equations Unit Grade 7

Term | Definition |
---|---|

Equation | Two expressions that are set equal to each other. |

Algebraic Expression | An expression that consists of numbers, operations, and variables. |

Inverse Operations | Operations that are opposites because they "undo" one another. |

Properties of Equality | Properties that state that adding, subtracting, multiplying, or dividing the same number to both sides of an equation creates an equivalent equation. |

Solution Set | All values for a variable that would make an inequality true. |

Verbal Expression | An expression that is given solely in words. |

Constant | The term in an expression that does not have a variable part. |

Like Terms | Terms that have identical variable parts that are raised to the same power. |

Combining Like Terms | The process of adding together the coefficients of terms with identical variable parts. |

Factoring | The process of dividing out a common factor from the terms of an expression. |

Coefficient | A numeric value that is multiplied by a variable. |

Variable | A symbol, usually a lower case letter, used to represent an unknown value or a value that changes. |

Numeric Expression | An expression that consists of entirely of numbers and operations. |

Solution | The value of a variable that makes an equation true. |

Equivalent Equations | Equations that have the same solution. |

Distributive Property | The property that states that a number being multiplied by a sum is equivalent to the sum of the products of the addends and the number. |

Terms | The parts of an expression that are being added together. |

Inequality | Two expressions that are being compared and are not necessarily equal to each other. |

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