I've tried running this equation through algebra calculators but none of them seem to be able to solve it. I'm not sure if it's just too difficult for these calculators or if it's actually unsolvable.

I'm trying to solve for a:

c = (v * (a / b) ^ 5) + (w * (a / b) ^ 4) + (x * (a / b) ^ 3) + (y * (a / b) ^ 2) + (z * (a / b))

Any help is much appreciated.

Cheers

T