equivalence vs equation

equivalence and equation both are nouns.

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

As nouns, equivalence and equation are synonyms defined as:

equivalence and equation: a state of being essentially equal or equivalent; equally balanced

Other synonyms of equivalence include equality, par.

equivalence (noun)	equation (noun)
qualities that are comparable	the act of regarding as equal
essential equality and interchangeability	a mathematical statement that two expressions are equal
a state of being essentially equal or equivalent; equally balanced	a state of being essentially equal or equivalent; equally balanced