6/(6b+7)=2/(b-7)

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Solution for 6/(6b+7)=2/(b-7) equation: 


D( b )

b-7 = 0

6*b+7 = 0

b-7 = 0

b-7 = 0

b-7 = 0 // + 7

b = 7

6*b+7 = 0

6*b+7 = 0

6*b+7 = 0 // - 7

6*b = -7 // : 6

b = -7/6

b in (-oo:-7/6) U (-7/6:7) U (7:+oo)

6/(6*b+7) = 2/(b-7) // - 2/(b-7)

6/(6*b+7)-(2/(b-7)) = 0

6/(6*b+7)-2*(b-7)^-1 = 0

6/(6*b+7)-2/(b-7) = 0

(6*(b-7))/((6*b+7)*(b-7))+(-2*(6*b+7))/((6*b+7)*(b-7)) = 0

6*(b-7)-2*(6*b+7) = 0

-6*b-56 = 0

(-6*b-56)/((6*b+7)*(b-7)) = 0

(-6*b-56)/((6*b+7)*(b-7)) = 0 // * (6*b+7)*(b-7)

-6*b-56 = 0

-6*b-56 = 0 // + 56

-6*b = 56 // : -6

b = 56/(-6)

b = -28/3

b = -28/3

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