9/x=63/28

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Solution for 9/x=63/28 equation: 


D( x )

x = 0

x = 0

x = 0

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

9/x = 63/28 // - 63/28

9/x-(63/28) = 0

9/x-9/4 = 0

9*x^-1 = 9/4 // : 9

x^-1 = 1/4

-1 < 0

1/(x^1) = 1/4 // * x^1

1 = 1/4*x^1 // : 1/4

4 = x^1

x = 4

x = 4

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