About: http://webisa.webdatacommons.org/322686164

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	When solving, if the two sides of the equation are always equal, then the equation is an identity.
http://www.w3.org/ns/prov#wasQuotedFrom	ck12.org