About: http://webisa.webdatacommons.org/217471256

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	Solving equations with variables on one side can be done using models such as a balance (or a seesaw) or by using algebra tiles.
http://www.w3.org/ns/prov#wasQuotedFrom	ck12.org