n * 2n = 2n2
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2n is 2 times n.
2n
2n/3 = 4 2n = 3*4 2n = 12 n = 6 :)
n+2/n=110 times by n on both sides n^2+2n=110n -2n -2n n^2=100n divide by n n=100 I think this may be right. Good luck!
1/2n + 1/(2n+2) = 1/2*[(1/n + 1/(n+1)] = 1/2*(2n+1)/[n*(n+1)] or (2n+1)/[2*n*(n+1)]