100/b=-4

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Solution for 100/b=-4 equation: 


D( b )

b = 0

b = 0

b = 0

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

100/b = -4 // + 4

100/b+4 = 0

100*b^-1 = -4 // : 100

b^-1 = -1/25

-1 < 0

1/(b^1) = -1/25 // * b^1

1 = -1/25*b^1 // : -1/25

-25 = b^1

b = -25

b = -25

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