48/4=9/x

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Solution for 48/4=9/x equation: 


D( x )

x = 0

x = 0

x = 0

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

48/4 = 9/x // - 9/x

48/4-(9/x) = 0

48/4-9*x^-1 = 0

-9*x^-1 = -12 // : -9

x^-1 = 4/3

-1 < 0

1/(x^1) = 4/3 // * x^1

1 = 4/3*x^1 // : 4/3

3/4 = x^1

x = 3/4

x = 3/4

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