15/(x+7)=5/6

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Solution for 15/(x+7)=5/6 equation: 


D( x )

x+7 = 0

x+7 = 0

x+7 = 0

x+7 = 0 // - 7

x = -7

x in (-oo:-7) U (-7:+oo)

15/(x+7) = 5/6 // - 5/6

15/(x+7)-(5/6) = 0

15/(x+7)-5/6 = 0

(6*15)/(6*(x+7))+(-5*(x+7))/(6*(x+7)) = 0

6*15-5*(x+7) = 0

55-5*x = 0

(55-5*x)/(6*(x+7)) = 0

(55-5*x)/(6*(x+7)) = 0 // * 6*(x+7)

55-5*x = 0

55-5*x = 0 // - 55

-5*x = -55 // : -5

x = -55/(-5)

x = 11

x = 11

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