-7-n/9-20 - solution

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Solution for -7-n/9-20 equation:

n in (-oo:+oo)

-(n/9)-20-7 = 0

-1/9*n-27 = 0 // + 27

-1/9*n = 27 // : -1/9

n = 27/(-1/9)

n = -243

n = -243

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