2/9=5/b

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Solution for 2/9=5/b equation: 


D( b )

b = 0

b = 0

b = 0

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

2/9 = 5/b // - 5/b

2/9-(5/b) = 0

2/9-5*b^-1 = 0

-5*b^-1 = -2/9 // : -5

b^-1 = 2/45

-1 < 0

1/(b^1) = 2/45 // * b^1

1 = 2/45*b^1 // : 2/45

45/2 = b^1

b = 45/2

b = 45/2

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