-7/b=4

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Solution for -7/b=4 equation: 


D( b )

b = 0

b = 0

b = 0

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

-7/b = 4 // - 4

-7/b-4 = 0

-7*b^-1 = 4 // : -7

b^-1 = -4/7

-1 < 0

1/(b^1) = -4/7 // * b^1

1 = -4/7*b^1 // : -4/7

-7/4 = b^1

b = -7/4

b = -7/4

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