SOLUTION: solve the log equation log [subscript 7] -3x+ log [subscript 7] 4=2 I got -3/4x

Algebra.Com
Question 1082048: solve the log equation
log [subscript 7] -3x+ log [subscript 7] 4=2
I got -3/4x

Answer by ikleyn(52798)   (Show Source): You can put this solution on YOUR website!
.
solve the log equation
log [subscript 7] -3x+ log [subscript 7] 4=2
I got -3/4x
~~~~~~~~~~~~~~~~~

  +  = 2  ====>

 = 2  ====>

(-3x)*4 = ,

-12x = 49  ====>  x = 


On logarithms, see a bunch of lessons
    - WHAT IS the logarithm
    - Properties of the logarithm
    - Change of Base Formula for logarithms
    - Solving logarithmic equations
    - Using logarithms to solve real world problems
in this site.

Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Logarithms".



RELATED QUESTIONS

solve the logarithmic equation: log[subscript 16] (3-5n)= log [subscript 16] (2n+7) I... (answered by ikleyn)
solve the equation: log (subscript of 8) 2x^2+log(subscript of 8)... (answered by scott8148)
solve: log(Y-1)(Y+2)=log(subscript 7) 7 (answered by ikleyn)
1/2 log (subscript 7) 5 + 3 log (subscript 7)... (answered by user_dude2008)
solve the logarithmic equation: log [subscript 2] 9-5n-1)=log [subscript 2] 20 I got... (answered by solver91311)
log (subscript 2) 48 - 1/3 log (subscript 2)... (answered by jim_thompson5910)
1/log (subscript 2) 6 + 1/log (subscript 3)... (answered by user_dude2008)
log (subscript 5) 4 - log (subscript 5) 3 + log (subscript 5) pi + 3 log (subscript 5)... (answered by user_dude2008)
What is the real value of x in the equation log(subscript 2) 24- log(subscript 2) 3 =... (answered by scott8148)