Substitute

Pronunciation: /ˈsʌb stɪˌtjut/ ?

To substitute is to replace a variable or expression with another variable or expression that may be equal to the original variable or expression. For example, start with the equation y=x+4. Substitute -3 for x. This gives y=(-3)+4. Now simplify the equation, giving y=1. One can the conclude that when x=-3, y=1 and that (-3,1) is a solution to the original equation y=x+4.

References

  1. substitute. http://wordnet.princeton.edu/. WordNet. Princeton University. (Accessed: 2011-01-08). http://wordnetweb.princeton.edu/perl/webwn?s=substitute&sub=Search+WordNet&o2=&o0=1&o7=&o5=&o1=1&o6=&o4=&o3=&h=.

More Information

  • McAdams, David. Substitution Property of Equality. allmathwords.org. All Math Words Encyclopedia. Life is a Story Problem LLC. 2009-03-12. http://www.allmathwords.org/article.aspx?lang=en&id=Substitution%20Property%20of%20Equality.

Cite this article as:


Substitute. 2008-11-25. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/s/substitute.html.

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2008-11-25: Initial version (McAdams, David.)

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