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Homework Help: How do you solve an equation with the variable in the denominator

  1. Mar 8, 2010 #1
    1. The problem statement, all variables and given/known data
    0 = [tex]\sum n_i / (b-a_i)[/tex]
    the summation is goes from i = 1 to k

    the question is to rationalize each term so that the denominator is positive, and then solve for b.

    2. Relevant equations

    3. The attempt at a solution
    i tried to expand the summation and get the factor of b and stuff
    but it didn't work at all
    does anyone know how to solve this summation in terms of b? thanks
  2. jcsd
  3. Mar 9, 2010 #2


    Staff: Mentor

    Show us what you tried, and particularly how you expanded the summation. It is after all a finite sum
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