Precalculus

log3 (x+1) - log3 (x-3) = 2

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asked by Sarah
  1. log3 [(x+1)/(x-3)] = 2
    (x+1)/(x-3) = 3^2 = 9
    x+1 = 9x-27
    8x = 28
    x = 7/2

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    posted by Steve

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