SOLUTION: Solve for x: a) (3/5)^x+1 = 25/9 b) (49/81)^x+1 > 9/7

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Solve for x: a) (3/5)^x+1 = 25/9 b) (49/81)^x+1 > 9/7       Log On


   

Question 1048183: Solve for x:
a) (3/5)^x+1 = 25/9
b) (49/81)^x+1 > 9/7
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!

a) (3/5)^x+1 = 25/9
(3/5)^x = 16/9
x*log(0.6) = 16/9
x = 16/(9*log(0.6))
x =~ -8.01347
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b) (49/81)^x+1 > 9/7
Do it like the 1st one.