9/15=8.4/x

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Solution for 9/15=8.4/x equation: 


D( x )

x = 0

x = 0

x = 0

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

9/15 = 8.4/x // - 8.4/x

9/15-(8.4/x) = 0

9/15-8.4*x^-1 = 0

-8.4*x^-1 = -3/5 // : -8.4

x^-1 = 0.07142857

-1 < 0

1/(x^1) = 0.07142857 // * x^1

1 = 0.07142857*x^1 // : 0.07142857

14.00000028 = x^1

x = 14.00000028

x = 14.00000028

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