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# Dissolving equation

## Dissolving equation

(OP)
Hi,

first of all: Sorry for my bad english. I hope you can understand my topic.

In MathCAD I want to solve a relatively complex equation with at least two unknowns.

The equation has got the following style: x + y + a = b, with a and b as constants.

Now I want to dissolve to x or y. After command "...solve,x -> q" MathCAD notices "No Solution found". I think the equation is too complex.

So is there any other possibility to compute x or y after defining one of them?

Here the link to the equation: http://www.bilder-space.de/bilder/bcab74-1278433362.jpg

Thanks for help.

so long...

### RE: Dissolving equation

Why are you using the symbolic solver?  The odds are low that a symbolic solution even exists.

### RE: Dissolving equation

(OP)
I used the symbolic solver because I dont know any other...

Which solver should I use better?

I dont need the solved equation necessarily. I need to know the solution of one of the variables depending on the equation by defining the other variable on my own.

### RE: Dissolving equation

The numeric solver, which uses a Given-Find construct.  See the help files.

### RE: Dissolving equation

How can you solve for two variables with only one equation?

Peter Nachtwey
Delta Computer Systems
http://www.deltamotion.com

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