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# Alg1A Unit 3

### Solving Linear Equations

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

Linear Equation | An algebraic expression made up of one or two variables with an exponent of 1, coefficient(s), and a constant |

Variable | A symbol, usually a letter, that represents one or more numbers |

Coefficient | The numerical factor when a term has a variable |

Constant | Any real number in an expression |

Addition Property of Equality | A property stating that you can add the same value to both sides of an equation, and both sides of the equation will remain equal |

Subtraction Property of Equality | A property stating that you can subtract the same value from both sides of an equation, and both sides of the equation will remain equal |

Multiplication Property of Equality | A property stating that you can multiply the same value to both sides of an equation, and both sides of the equation will remain equal |

Division Property of Equality | A property stating that you can divide both sides of an equation by the same value, and both sides of the equation will remain equal |

Rate of Change | A rate that describes how one quantity changes in relation to another quantity |

Initial Value | The value of the situation when the variable is equal to 0 |

Like Terms | Terms in an expression that have the same variable to the same power |

Commensurable Units | Units of physical quantities of the same kind, i.e. length, time, and mass |

Accuracy | How close a measurement is to a specified value |

Precision | When measurements or locations are consistent and repeatable, but it also means the level of detail provided by a measuring device |

Tolerance | An accepted amount of variation in a product |

Literal Equation | An expression made up of two or more letters or symbols that each represent some arbitrary value |

Dimensional Analysis | The process of multiplying a quantity by the proper ratio of units to convert that quantity to the desired commensurate units |