(n+2)/3=7

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Solution for (n+2)/3=7 equation: 


n in (-oo:+oo)

(n+2)/3 = 7 // - 7

(n+2)/3-7 = 0

(n+2)/3+(-7*3)/3 = 0

n-7*3+2 = 0

n-19 = 0

(n-19)/3 = 0

(n-19)/3 = 0 // * 3

n-19 = 0

n-19 = 0 // + 19

n = 19

n = 19

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