15/17=42/x

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Solution for 15/17=42/x equation: 


D( x )

x = 0

x = 0

x = 0

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

15/17 = 42/x // - 42/x

15/17-(42/x) = 0

15/17-42*x^-1 = 0

-42*x^-1 = -15/17 // : -42

x^-1 = 5/238

-1 < 0

1/(x^1) = 5/238 // * x^1

1 = 5/238*x^1 // : 5/238

238/5 = x^1

x = 238/5

x = 238/5

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