7/11=15/x

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Solution for 7/11=15/x equation: 


D( x )

x = 0

x = 0

x = 0

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

7/11 = 15/x // - 15/x

7/11-(15/x) = 0

7/11-15*x^-1 = 0

-15*x^-1 = -7/11 // : -15

x^-1 = 7/165

-1 < 0

1/(x^1) = 7/165 // * x^1

1 = 7/165*x^1 // : 7/165

165/7 = x^1

x = 165/7

x = 165/7

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