-7n-9=99+2n

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Solution for -7n-9=99+2n equation: 


n in (-oo:+oo)

-7*n-9 = 2*n+99 // - 2*n+99

-7*n-(2*n)-99-9 = 0

-7*n-2*n-99-9 = 0

-9*n-108 = 0 // + 108

-9*n = 108 // : -9

n = 108/(-9)

n = -12

n = -12

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