Algebra: Expressions involving variables, substitution Solvers

• Solver : SIMPLIFY any expression (no substitution) by ichudov(332)  
• Solver : SUBSTITUTION solver -- shows cartoon of substitution by ichudov(332)  

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• You, too, can write your own solvers. Click here to create a solver on 'Expressions-with-variables'. They will have your name on them. It is easy, too. Click here for more information. Simply go to any section of my site and look for 'Create a solver' link. If you are new, I recommend starting in the "playground" section of my site. You can see the "source code" of other solvers to learn how they are written.
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