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Study Guide

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If you encounter a variable on both sides of the equal sign, don't assume it's a typo and move on to the next problem; it may very well be there on purpose. The key to solving these types of equations is to *move* all the terms containing the variable to one, and only one, side. It doesn't matter which side you choose. Just try to pick the easier one.

As before, there are a lot of different ways to solve these problems. Choose whatever way floats your boat.

Let's dive into two different methods for solving the following equation.

subtract 2x from each side | |

combine the like terms | |

subtract 18 from each side | |

simplify | |

divide each side by 3 | |

and done! |

subtract 5x from each side | |

combine the like terms | |

add 6 to each side | |

simplify | |

divide each side by -3 | |

same answer |

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