(2/(8x+7))=(5/(x+3))

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Solution for (2/(8x+7))=(5/(x+3)) equation: 


D( x )

x+3 = 0

8*x+7 = 0

x+3 = 0

x+3 = 0

x+3 = 0 // - 3

x = -3

8*x+7 = 0

8*x+7 = 0

8*x+7 = 0 // - 7

8*x = -7 // : 8

x = -7/8

x in (-oo:-3) U (-3:-7/8) U (-7/8:+oo)

2/(8*x+7) = 5/(x+3) // - 5/(x+3)

2/(8*x+7)-(5/(x+3)) = 0

2/(8*x+7)-5*(x+3)^-1 = 0

2/(8*x+7)-5/(x+3) = 0

(2*(x+3))/((8*x+7)*(x+3))+(-5*(8*x+7))/((8*x+7)*(x+3)) = 0

2*(x+3)-5*(8*x+7) = 0

-38*x-29 = 0

(-38*x-29)/((8*x+7)*(x+3)) = 0

(-38*x-29)/((8*x+7)*(x+3)) = 0 // * (8*x+7)*(x+3)

-38*x-29 = 0

-38*x-29 = 0 // + 29

-38*x = 29 // : -38

x = 29/(-38)

x = -29/38

x = -29/38

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