Question

-1/2n = n-1

Answer 1

(3/2)n=1
n=2/3
if the question is (-1/2)n=n-1

Answer 2

-1 OVER 2N

Answer 3

SO IS IT 1 OR -1??

Answer 4

-1=2n^2-2n
2n^2-2n+1=0
it is an imaginary solution b^2-4ac = -4
are you sure of the question? Do you want an imaginary solution?