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Constanceleak

  • one year ago

Solve the equation for y. Solve for y 8x – 9y = 11

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  1. anonymous
    • one year ago
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    11/9

  2. OnePieceFTW
    • one year ago
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    @johnnyy999 you're wrong cause we have two variables. We couldn't possibly find the solution.

  3. Constanceleak
    • one year ago
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    actually it's a two variable solution

  4. Constanceleak
    • one year ago
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    so it's possible

  5. OnePieceFTW
    • one year ago
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    Subtract 8x from both sides –9y = 11 - 8x Divide both sides by -9 \[y = -\frac{ 11 }{ 9 } - 8x\]

  6. Constanceleak
    • one year ago
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    i thought 8x needed to be divided by 9

  7. OnePieceFTW
    • one year ago
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    right that's correct \[y = \frac{ -11-8x }{ -9 }\]

  8. OnePieceFTW
    • one year ago
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    Sorry :/

  9. Constanceleak
    • one year ago
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    It's ok

  10. Constanceleak
    • one year ago
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    \[y=-9/8x-9/11\]

  11. Constanceleak
    • one year ago
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    y=9/8x+11/8

  12. Constanceleak
    • one year ago
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    y=-8x-11

  13. Constanceleak
    • one year ago
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    or y=8/9x-11/9

  14. Constanceleak
    • one year ago
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    those are the only answers

  15. YoloShroom
    • one year ago
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    It's the last one :) I believe y=8/9x -11/9

  16. YoloShroom
    • one year ago
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    |dw:1444071499221:dw|

  17. YoloShroom
    • one year ago
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    Hope that works for you.

  18. OnePieceFTW
    • one year ago
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    But we don't have a 9x ever in the equation. Are you sure one of the choices isn't \[y=\frac{ -8x }{ -9 } + \frac{ 11 }{ -9 }\]

  19. OnePieceFTW
    • one year ago
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    11/-9

  20. YoloShroom
    • one year ago
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    Oh damn, missed that... My bad ;-;..

  21. Constanceleak
    • one year ago
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    i found that the last one is the answer

  22. Constanceleak
    • one year ago
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    thx guys

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