On Mon, Jan 9, 2012 at 1:33 PM, Kevin Hunter <hunt...@gmail.com> wrote:

> Hullo Sympy Group,
>
> I have a series of relations that I am receiving from an outside object
> and code base.  These equations are in no particular format, and I want to
> convert them to one.  At the moment, the end format I need is
>
>
In case there is any nesting of your expressions, you might want to apply
`expand_mul(expand_multinomial(eq.lhs - eq.rhs))` to make sure the
expression is flat:

>>> eq
3*x*(x + y) == -x + 3
>>> expand_mul(expand_multinomial(eq.lhs - eq.rhs)).as_coeff_Add()
(-3, 3*x**2 + 3*x*y + x)
>>> Eq(_[1], -_[0])
3*x**2 + 3*x*y + x == 3

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