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Message Subject Math: 6÷2(1+2) = ?
Poster Handle Anonymous Coward
Post Content
I understand, but the original equation was written with an obelus, NOT a solidus...
Quoting: Anonymous Coward 31557420

But the identity law doesn't change, and is used the same way.

a ÷ a = 1 (There is still a 1 in front of both a's)
1a ÷ 1a = 1 (not 1*a÷1*a)

therefore, 6 ÷ 2n = 3/n

PS: The obelus can be interchanged with a divisional slash, but not as a Solidus. Check this out, forgot I had it:

===================================

Obelus: The obelus is primarily used as a symbol for division
Slash: Used between numbers slash means division, and in this sense the symbol may be read aloud as "over".
Solidus: The solidus <snip due to html coding of symbols> or a shilling mark is a punctuation mark used to indicate fractions.
Now, the obelus and slash can be used interchangeably as long as the slash is interpreted as division NOT mistaken for a solidus.
In that regard 6÷2n = 6/2n, which MEANS 6/(2n). Let n = 2+1.
Quoting: caper_26