81/7=d+4/7

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Solution for 81/7=d+4/7 equation: 


d in (-oo:+oo)

81/7 = d+4/7 // - d+4/7

81/7-d-(4/7) = 0

81/7-d-4/7 = 0

11-d = 0 // - 11

-d = -11 // * -1

d = 11

d = 11

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