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Implicit equations 1

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blckwtr

blckwtr

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How can i solve implicit equations in a simple matter without separating the two sides first? I want to solve it directly...
 
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Select the variable that you want to solve for (on either side) and then in the Symbolics menu select Variable|Solve. The implicit equation needs to have a Ctrl+= sign between the two sides.
 
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But what if i have a range variable on the one side? I get this message:

This matrix must be square. It should have the same number of rows as columns.

I excpeted to get a range variable as an output when i used the Find(*) command. It certainly is a same amount of answers??
 
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