Need help with this problem:(

[CharlieAlfa]

Hi...
When i try to use solve() to solve a 2 var ecc. its send me a error messagge:
The ecuation is:
solve((0.6=y*q^2)/(176.4*y),y)
and the message is:
["Not implemented, e.g. for multivariate mod/approx polynomials Error: Bad Argument Type"]
Please i need to fix it before tomorrow cause i have an exam T.T
Thanks