# Equation solution

• April 30th 2010, 08:43 AM
kgb67
Equation solution
Hi,

Please, how can I isolate "d" variable in this equation? Which the value of "d"?
Attachment 16626

If I didn't wrong anything, the equation will be like this, but, how to find the value of "d"?
Attachment 16628

Euler
• April 30th 2010, 11:25 PM
CaptainBlack
Quote:

Originally Posted by kgb67
Hi,

Please, how can I isolate "d" variable in this equation? Which the value of "d"?
Attachment 16626

If I didn't wrong anything, the equation will be like this, but, how to find the value of "d"?
Attachment 16628

Euler

You have a quartic in $d$ , which often is impractical to solve in closed form when you have symbolic coefficients, but look here.

CB
• May 1st 2010, 06:53 AM
kgb67
CaptainBlack,

Thank you for your answer and your tip. After several attempts I verified that would not be practical to solve this system. (Doh)

Thank you,

Euler