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nel95

  • 4 years ago

elimination method 8x-y=47 x+3y=34

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  1. dinainjune
    • 4 years ago
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    8x-y=47 ....(1) x+3y=34 ....(2) (2) x=-3y+34 (2) substitute to (1) 8(-3y+34) -y =47 -24y+272-y =47 -25y=-225 y =9 y substite to (2) x+3(9) =34 x=7

  2. nel95
    • 4 years ago
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    i see what you did I forgot to do -3y+34

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