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autumn.epic Group Title

1 over (b - 1) + 3 over (1 - b) can someone explain how to do this problem please? :)

  • 3 years ago
  • 3 years ago

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  1. MarinaDL Group Title
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    Multiply the second fraction by -1/(-1) Then you will have 2 fractions with the same denominator and you can add numerators (1-3)/(b-1)=-2/(b-1) or 2/(1-b)

    • 3 years ago
  2. mathTalk Group Title
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    1/(b-1) + 3/(1-b) =1/(b-1) - 3/(b-1) = -2/(b-1)

    • 3 years ago
  3. mathTalk Group Title
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    =2/(1-b)

    • 3 years ago
  4. autumn.epic Group Title
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    thanks!

    • 3 years ago
  5. MarinaDL Group Title
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    you are welcome

    • 3 years ago
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spraguer (Moderator)
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