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Diketahui m dan n merupakan penyelesaian dari sistem persamaan { 3 x + 2 y = 17 2 x + 3 y = 8 ​ Nilai m + n = ....

  1. 9

  2. 8

  3. 7

  4. 6

  5. 5

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S. Intan

Master Teacher

Mahasiswa/Alumni Institut Pertanian Bogor

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E l i m i n a s i space p e r s a m a a n space 1 space d a n space 2 space  3 x plus 2 y equals 17 space space space vertical line cross times 2 vertical line space space space space space 6 x plus 4 y equals 34 space  2 x plus 3 y equals 8 space space space space space vertical line cross times 3 vertical line space space space space space bottom enclose 6 x plus 9 y equals 24 minus end enclose space space space space space space space space space  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space minus 5 y equals 10 space space space space space space space space space  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space y equals negative 2 space space  S u b s t i t u s i k a n space y equals negative 2 space k e d a l a m space s a l a h space s a t u space p e r s a m a a n space  3 x plus 2 y equals 17 space space space rightwards arrow space space space 3 x plus 2 left parenthesis negative 2 right parenthesis equals 17  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space 3 x minus 4 equals 17 space space space space space space space space space space space space  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space 3 x equals 21 space space space space space space space space space space space space space space  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space x equals 7 space  K a r e n a space x equals m space s e h i n g g a space y equals n space  m plus n equals 7 plus left parenthesis negative 2 right parenthesis equals 5

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