8/b=2/5

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Solution for 8/b=2/5 equation: 


D( b )

b = 0

b = 0

b = 0

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

8/b = 2/5 // - 2/5

8/b-(2/5) = 0

8/b-2/5 = 0

8*b^-1 = 2/5 // : 8

b^-1 = 1/20

-1 < 0

1/(b^1) = 1/20 // * b^1

1 = 1/20*b^1 // : 1/20

20 = b^1

b = 20

b = 20

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