How do you solve an equation with the variable in the denominator

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SUMMARY

The discussion focuses on solving the equation 0 = ∑ n_i / (b - a_i), where the summation runs from i = 1 to k. The primary challenge is to rationalize each term to ensure the denominator remains positive and subsequently solve for the variable b. Participants emphasize the need to expand the summation correctly to isolate b, highlighting that it is a finite sum. The conversation indicates that a systematic approach to manipulating the summation is essential for finding a solution.

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Homework Statement


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.

Homework Equations





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

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