Basic problems are often written as:
3
-2
-- <-- Is there a name for this?
1
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Sign up to join this communityBasic problems are often written as:
3
-2
-- <-- Is there a name for this?
1
An underline. See “Addition: Notation and terminology” at Wikipedia.
You may use vinculum or horizontal line in mathematical notation. Please check Mathforum and Wikipedia.
I think "the equals line" would be understood if that's all you need (and if you can't come up with something better).