Trouble finding inverse of y = 10^x / (10^x + 1)
This is surely where a teacher is handy to have. Luckily, I also have this forum!
I'm obviously missing something, but I can't figure out the inverse of:
I can isolate one x variable, but can't figure out how to isolate it entirely.
I've tried a bunch of ways, but the main one is:
Take the log base 10 of both sides:
Split off the division into subtraction:
Then I can isolate one x:
I just can't seem to see the way forward. Please, someone help put me out of my misery. Would be much appreciated!