6d/7+9=81

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Solution for 6d/7+9=81 equation: 


d in (-oo:+oo)

(6*d)/7+9 = 81 // - 81

(6*d)/7-81+9 = 0

6/7*d-72 = 0 // + 72

6/7*d = 72 // : 6/7

d = 72/6/7

d = 84

d = 84

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