Question 48476
ok then, log base3. I shant write the 3 for sake of clarity.


log(x+7)-log(x) = 3


So, we have 2 log terms separated by a minus. So we can combine them as a division.


log((x+7)/x) = 3


And now we can remove the log by doing the "opposite" which is raise to base 3:
{{{ (x+7)/x = 3^3 }}}
{{{ (x+7)/x = 27 }}}
{{{ x+7 = 27x }}}
{{{ 7 = 26x }}}
x = 7/26


jon