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16 September, 16:45

9x - 3y = - 42 and - 9x + 8y = 22

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Answers (1)
  1. 16 September, 18:04
    0
    (-5 1/9, - 4)

    Step-by-step explanation:

    Add the equations

    5y=-20

    y=-4

    -9x+8 (-4) = 22

    -9x-32=22

    -9x=46

    x = - 5 1/9
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