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autumn.epic

  • 4 years ago

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

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  1. MarinaDL
    • 4 years ago
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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)

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

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

  4. autumn.epic
    • 4 years ago
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    thanks!

  5. MarinaDL
    • 4 years ago
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    you are welcome

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