7/b+5=10/5

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Solution for 7/b+5=10/5 equation: 


D( b )

b = 0

b = 0

b = 0

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

7/b+5 = 10/5 // - 10/5

7/b-(10/5)+5 = 0

7/b-2+5 = 0

7*b^-1 = -3 // : 7

b^-1 = -3/7

-1 < 0

1/(b^1) = -3/7 // * b^1

1 = -3/7*b^1 // : -3/7

-7/3 = b^1

b = -7/3

b = -7/3

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