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Find the sum of all x that satisfy the equation -9x/(x^2 - 1) = 2x/(x + 1) - 6/(x - 1) + 3/(x + 1)

 Jun 13, 2022
 #1
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x^2 - 1  = (x + 1)  ( x - 1)

 

Multiplying both sides by the right side above

 

- 9x  =  2 (x - 1) - 6(x + 1)  + 3(x - 1)      simplify

 

-9x = 2x - 2  -6x - 6 + 3x  - 3

 

-9x =  -x -  11

 

-8x =  11

 

x =   -11 /  8

 

cool cool cool

 Jun 13, 2022

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