SOLUTION: Oh boy! I just don't get it. 1/n+ 1/(n+1)= -1/n(n+1)

Question 223529: Oh boy! I just don't get it.
1/n+ 1/(n+1)= -1/n(n+1)
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
1/n+ 1/(n+1)= -1/n(n+1)
Add the 2 fractions on the left. To do that, get a common denominator
DEN = n(n+1), the same on the right side.
---------
(n+1)/DEN + n/DEN = -1/DEN
Multiply thru by DEN
(n+1) + n = -1
2n+1 = -1
2n = -2
n = -1

RELATED QUESTIONS
(n-1)(n sqaured +... (answered by Alan3354)

|i-1|^n=4find n (answered by ikleyn)

n(n-1)=110 (answered by rapaljer)

n!/(n-1)!=5 (answered by jim_thompson5910,stanbon)

n!(n+2)=n!+(n+1)! (answered by LinnW)

{{{n^... (answered by Fombitz)

Simplify the expression:... (answered by ikleyn)

please simplify the the expression completely (n!n^2-n!)/((n-1)(n+1)) I tried to... (answered by jim_thompson5910,Alan3354)

n<-1 (answered by ikleyn)