3^-3b=1/81

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Solution for 3^-3b=1/81 equation: 


b in (-oo:+oo)

3^-3*b = 1/81 // - 1/81

3^-3*b-(1/81) = 0

3^-3*b-1/81 = 0

1/27*b-1/81 = 0 // + 1/81

1/27*b = 1/81 // : 1/27

b = 1/81/1/27

b = 1/3

b = 1/3

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