Pleeeeeeese HELP

[lowgear]

I havent done this type of math for too many years to remember. I use math daily in my work, but for the life of me I cant seem to figure out how to do this conversion. Could someone please help, I will be very grateful.
Thanks
lowgear

1.3*((X*10)^.625/(X+10)^.25) = 11.9626


I need to know how to find X

[vsage]

I would start by taking the equation to the 8th power then multiplying both sides by the left side's denominator then combining like terms to get you a polynomial of integer powers.

[Curious3141]

Maple gives X = 11.99997853

If you rounded off some of the constants, then I think you were going for a solution of 12.