-9+4n+7n=123

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Solution for -9+4n+7n=123 equation: 


n in (-oo:+oo)

4*n+7*n-9 = 123 // - 123

4*n+7*n-123-9 = 0

11*n-132 = 0 // + 132

11*n = 132 // : 11

n = 132/11

n = 12

n = 12

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