Question 288268: How do you solve for x? -3 ln x-3=12
Answer by lit(2)   (Show Source):
You can put this solution on YOUR website! Start with the loose number (-3) and add 3 to each side to get the x on one side all by himself, making the equation:
x=12+3
Add 3 to 12 to get 15, and then plug that back into the equation:
x=15.
Now work it backwards. Plug (15) back into the spot where "x" was in the original equation.
(15)-3=12
This is correct, 15 minus 3 IS 12, so now that you've double-checked your work, you're good to go!
If the "3" had been positive in the original equation, you would have subtracted it from each side. This removes it from one side and thereby moves it to the next side, this way you don't lose any numbers in your attempts to make the problem more readable.
So! X=15 for this problem.
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