7/7=10/b+3

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Solution for 7/7=10/b+3 equation: 


D( b )

b = 0

b = 0

b = 0

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

7/7 = 10/b+3 // - 10/b+3

7/7-(10/b)-3 = 0

7/7-10*b^-1-3 = 0

-10*b^-1 = 2 // : -10

b^-1 = -1/5

-1 < 0

1/(b^1) = -1/5 // * b^1

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

-5 = b^1

b = -5

b = -5

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