Here I have a proof,can anybody explain how to proof it?

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- August 23rd 2012, 06:47 AMsrirahulanBasic Algebra
Here I have a proof,can anybody explain how to proof it?

- August 23rd 2012, 07:01 AMProve ItRe: Basic Algebra
- August 23rd 2012, 07:09 AMPlatoRe: Basic Algebra