SOLUTION: Hi I am studying for a test and can not figure out how to solve 9^(-3x)=7. Could you show me step by step how to solve it? Thank you!

SOLUTION: Hi I am studying for a test and can not figure out how to solve 9^(-3x)=7. Could you show me step by step how to solve it? Thank you!

Algebra.Com

Question 417394: Hi I am studying for a test and can not figure out how to solve 9^(-3x)=7. Could you show me step by step how to solve it? Thank you!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!

-3x*log(9) = log(7)
-3x = log(7)/log(9)
x = -log(7)/(3*log(9))
x =~ -0.2952

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