(4/b-2)=(4/12)

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Solution for (4/b-2)=(4/12) equation: 


D( b )

b = 0

b = 0

b = 0

b in (-oo:0) U (0:+oo)

4/b-2 = 4/12 // - 4/12

4/b-(4/12)-2 = 0

4/b-1/3-2 = 0

4*b^-1 = 7/3 // : 4

b^-1 = 7/12

-1 < 0

1/(b^1) = 7/12 // * b^1

1 = 7/12*b^1 // : 7/12

12/7 = b^1

b = 12/7

b = 12/7

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