6/b+9=4/b+5

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Solution for 6/b+9=4/b+5 equation: 


D( b )

b = 0

b = 0

b = 0

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

6/b+9 = 4/b+5 // - 4/b+5

6/b-(4/b)-5+9 = 0

6/b-4*b^-1-5+9 = 0

2*b^-1 = -4 // : 2

b^-1 = -2

-1 < 0

1/(b^1) = -2 // * b^1

1 = -2*b^1 // : -2

-1/2 = b^1

b = -1/2

b = -1/2

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