-1=2n+3n+9

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Solution for -1=2n+3n+9 equation: 


n in (-oo:+oo)

-1 = 2*n+3*n+9 // - 2*n+3*n+9

-(2*n)-(3*n)-9-1 = 0

-2*n-3*n-9-1 = 0

-5*n-10 = 0 // + 10

-5*n = 10 // : -5

n = 10/(-5)

n = -2

n = -2

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