SOLUTION: how do you solve logarithmic equation log(x+9)= 1 - log x
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Question 685657: how do you solve logarithmic equation log(x+9)= 1 - log x
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
how do you solve logarithmic equation log(x+9)= 1 - log x
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log(x+9)+log(x) = 1
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log[x(x+9)] = 1
x^2+9x = 10
x^2 + 9x - 10 = 0
(x+10)(x-1) = 0
Positive solution:
x = 1
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Cheers,
Stan H.
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