2n+1-4n=9

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Solution for 2n+1-4n=9 equation: 


n in (-oo:+oo)

2*n-(4*n)+1 = 9 // - 9

2*n-(4*n)-9+1 = 0

2*n-4*n-9+1 = 0

-2*n-8 = 0 // + 8

-2*n = 8 // : -2

n = 8/(-2)

n = -4

n = -4

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