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Multiplicative Property of Equality

The formal name for the property of equality that allows one to multiply the same quantity by both sides of an equation. This, along with the additive property of equality, is one of the most commonly used properties for solving equations.

 

Property: If  a = b  then  a·c = b·c.
Example:      x/5 = 7
(x/5)·5 = 7·5
        x = 35

 


  this page updated 28-jul-14
Mathwords: Terms and Formulas from Algebra I to Calculus
written, illustrated, and webmastered by Bruce Simmons
NCTM Web Bytes December 2004 Web Bytes March 2005 Web Bytes