9/b=-7

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Solution for 9/b=-7 equation: 


D( b )

b = 0

b = 0

b = 0

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

9/b = -7 // + 7

9/b+7 = 0

9*b^-1 = -7 // : 9

b^-1 = -7/9

-1 < 0

1/(b^1) = -7/9 // * b^1

1 = -7/9*b^1 // : -7/9

-9/7 = b^1

b = -9/7

b = -9/7

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