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anonymous

  • one year ago

Please help. Will medal and fan

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  1. phi
    • one year ago
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    they say equation 1 is replaced with the sum of equation 1 and a multiple of equation 2, equation 2 is multiplied by 1 in other words, they are thinking : add equation 1 and equation 2 can you do that ?

  2. phi
    • one year ago
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    yes. look for that result for the correct choice. (and of course, the second equation stays the way it was)

  3. phi
    • one year ago
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    and remember -1y can be written - y

  4. anonymous
    • one year ago
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    ok cool

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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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