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24 December, 19:20

8x + 5y = 24

y = - 4x

what's X and what's y?!

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Answers (1)
  1. 24 December, 19:32
    0
    Plug y=-4x into the first equation:

    8x+5 (-4x) = 24

    -12x=24

    x=-2

    y=-4 (-2) = 8
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