Simple algebraic equations take too long to solve

Questions
, ,
1

I have been trying to solve these following equations to calculate the value of u and v. but it is taking forever to solve. Kindly look into this.

Thank you

Open in Wolfram Cloud ↗

trail.nb (10.7 KB)

2

In your case is Sextic equation ,Solve give you solution by Root function.I used Eliminate, because Solve hangs up.

Equation ver2.nb (4.39 MB)
Untitled _OP_2_CP_.pdf (2.38 MB)

3

Thank you for replying. that’s really helpful

4

Hii Mariusz… how long did it take so solve this. In my case its been more than 8 hours and it is still running.

5

A 1 hour computation then I Aborted.

I have simplified version see attached file.

Equation ver3.nb (136 KB)

6

Thankyou for your kind reply. That’s really helpful

7

Hi
Thanks everybody to take part into this discussion, I am also facing the same problem. Solve command taking too much time. Couple of times, mathematica kernel also quite.
How to avoid this problem

8

You replaced N -> n, but n was already a parameter.