This method is close to the familiar process of successive eliminations of undesired variables in a system of equations.
2.
He showed how to convert a problem stated verbally into a system of polynomial equations ( up to the 14th order ), by using up to four unknowns : ) YHeaven, 0WEarth, �NMan, irMatter, and then how to reduce the system to a single polynomial equation in one unknown by successive elimination of unknowns.
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