Posted by **John** on Thursday, September 27, 2012 at 10:18pm.

e^(10)-e^(10-x)-x/(e^(10)-11)=0.25

and

e^(10)-e^(10-x)-x/(e^(10)-11)=0.75

-Solve both for x.

-Can you solve both of these for x without a Ti-89 calculator? If so how?

-The reason I want to calculate this is to find upper and lower quartiles of a deformity angle which is defined by the function on the left hand side of the equals sign.

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