SOLUTION: 2^1-x = 9^x+1 --> solve for x using logarthimis
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Question 283604: 2^1-x = 9^x+1 --> solve for x using logarthimis
Answer by user_dude2008(1862) (Show Source): You can put this solution on YOUR website!
=\ln\left(9^{x+1}\right))
\ln\left(2\right)=(x+1)\ln\left(9\right))
-x\ln\left(2\right)=x\ln\left(9\right)+\ln\left(9\right))
-x\ln\left(9\right)=\ln\left(9\right)-\ln\left(2\right))
+\ln\left(9\right))=\ln\left(9\right)-\ln\left(2\right))
-\ln\left(2\right)}{\ln\left(2\right)+\ln\left(9\right)})
-\ln\left(2\right)}{\ln\left(2\right)+\ln\left(9\right)})
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