Error help, THere should be nothing between the closing...

I keep getting this error,
There Should be nothing between the closing bracket and the = sign.

this is what i'm trying to enter

cos(2x)-3sin(x)-2=0

any thoughts?

Hi Conkille,
Currently, you can only use = sign to define a new variable or function:
x=55
f(x,y)=x+y

You Cannot use it to define an equation and then solve for x. This is however a feature that we are working on and will be available in version 2.2

Does it answer your question?