# Math Help - Equation solution

1. ## Equation solution

Hi,

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

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

Euler

2. Originally Posted by kgb67
Hi,

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

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

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

3. CaptainBlack,

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

Thank you,

Euler