put this into the calculator to have your brain explode (not literally)
OBT: Get ready!! This is a relatively complicated solution found by "Mathematica 11 Home Edition"
Here are the 3 solutions it found. The process involved is very long and "messy" !!.
x=-9.45649...... or x =-1.01031..........or =10.4668053180....
P.S. If you want the full calculations, I can give them to you.