-7n+9+n=-3 - solution

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Solution for -7n+9+n=-3 equation:

n in (-oo:+oo)

n-7*n+9 = -3 // + 3

n-7*n+3+9 = 0

12-6*n = 0 // - 12

-6*n = -12 // : -6

n = -12/(-6)

n = 2

n = 2

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