https://www.youtube.com/watch?v=OtD8_LVFhEs
Cancel. Nice, CPhill.
Subtract 9 from both sides.
Divide by -6 to obtain x.
I assume this is log5 (3x-7) = 3
5^3 = 3x - 7
125 = 3x - 7
From here, it should be simple algebra!
I don't think so.
Here you go: https://www.khanacademy.org/math/differential-calculus
What is the expression for?
Use the xy key. Or simply use ^ to indicate 'to the power of'.
Example: 3^4 = 81.
log(xy) = 14
log x + log y = 14
log x = 14 - log y
x = 10^(14 - log y).
