equation vs equate

equation is a noun but equate is not a noun.

Word	Noun	Adjective	Verb	Adverb
equation	Yes	No	No	No
equate	No	No	Yes	No

equation (noun)	equate (noun)
the act of regarding as equal
a mathematical statement that two expressions are equal
a state of being essentially equal or equivalent; equally balanced

equation (verb)	equate (verb)
	make equal, uniform, corresponding, or matching
	consider or describe as similar, equal, or analogous
	be equivalent or parallel, in mathematics