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# Re: Simple algebra problem
Eddy Wibowo wrote:
>
> Hi all netters,
>
> Suppose that I have an equation of:
> Sqrt[x+y]+ 2x + 3y == 0
>
> Now, what is the Mathematica-way to find:
> Sqrt[x+y] = ???
> y = ???
>
> Thanks very much beforehand...
>
> -Edwin
To solve for a symbol in the equation, such as y, use Solve:
Solve[Sqrt[x+y]+2 x +3 y==0,y]
Solving for a function or something more complicated requires the use of
a transormation afterwards
Solve[aa+2 x +3 y==0,aa]/.aa->Sqrt[x+y] --
Remove the _nospam_ in the return address to respond.
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