SOLUTION: write as a single logarithm 5Lnx-81Lny solve for x 4Ln(3x)=40 10x+3=102 expand 1og(x raised to the 3rd power) divided by 10,000 5-x+2=5 3x+7

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: write as a single logarithm 5Lnx-81Lny solve for x 4Ln(3x)=40 10x+3=102 expand 1og(x raised to the 3rd power) divided by 10,000 5-x+2=5 3x+7      Log On


   

Question 47979: write as a single logarithm
5Lnx-81Lny

solve for x
4Ln(3x)=40
10x+3=102

expand 1og(x raised to the 3rd power) divided by 10,000
5-x+2=5 3x+7
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
5*ln(x) - 81*ln(y)
ln(x^5) - ln(y^81)
ln(x^5/y^81)
solve for (x)
4*ln(3x) = 40
ln(3x) = 10
3x = e^10
x = (e^10)/3
About 7,342.1553
log(x^3)/10,000
3*log(x) - 10,000*log(10)