Twice The Difference Between Four Time A Number And Five Is Six. Can You Find The Number?


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Oddman Profile
Oddman answered
2(4n-5) = 6
4n-5 = 3    (divide both sides by 2)
4n = 8    (add 5 to both sides)
n=2    (divide both sides by 4)

2(5-4n) = 6
5-4n = 3    (divide both sides by 2)
-4n = -2    (subtract 5 from both sides)
n = 1/2    (divide both sides by -4)

It depends on what you mean by "the difference between __ and __".

thanked the writer.
Anonymous commented
'the difference' is ambiguous, but I would generally say that this refers to the positive value , or abs(x-y).
Oddman commented
You will note that 'the difference" is positive for both answers. The answer just depends on which one gets subtracted from the other to form "the difference." If you write it as 2|4n-5|=6, you get the same pair of answers.

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