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anonymous

  • one year ago

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    @Photon336

  3. anonymous
    • one year ago
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    @Vocaloid

  4. Michele_Laino
    • one year ago
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    here, we have a double inequality, so if we add 2 to all of three sides, we get: \[ - 5 + 2 \leqslant n - 2 + 2 \leqslant 2 + 2\] please simplify

  5. anonymous
    • one year ago
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    how would I simplify this?

  6. Michele_Laino
    • one year ago
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    what is -5+2=...?

  7. anonymous
    • one year ago
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    3?

  8. Michele_Laino
    • one year ago
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    ok! then what is 2+2=...?

  9. anonymous
    • one year ago
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    4

  10. Michele_Laino
    • one year ago
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    finally: what is -2+2=...?

  11. anonymous
    • one year ago
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    0?

  12. Michele_Laino
    • one year ago
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    ok! so the above inequality, is equivalent to this one: \[ - 3 \leqslant n \leqslant 4\]

  13. anonymous
    • one year ago
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    so that would be it?

  14. Michele_Laino
    • one year ago
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    yes! Now, what is the right option?

  15. anonymous
    • one year ago
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    3rd one

  16. Michele_Laino
    • one year ago
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    correct!

  17. anonymous
    • one year ago
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    OK thank you

  18. Michele_Laino
    • one year ago
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    :)

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spraguer (Moderator)
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