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<http://webisa.webdatacommons.org/348507805>	<http://www.w3.org/ns/prov#value>	"ear equationsAlgebraic identitiesNotation & AssumptionsIn this document, lower case roman alphabets will be used to denote variables such as a,b,c,x,y,z,wIn general it is assumed that the GMAT will only deal with real numbers (\\(\\mathbb{R}\\)) or subsets of \\(\\mathbb{R}\\) such as Integers (\\(\\mathbb{Z}\\)), rational numbers (\\(\\mathbb{Q}\\)) etcConcept of variablesA variable is a place holder, which" .