7/12=4/x

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Solution for 7/12=4/x equation: 


D( x )

x = 0

x = 0

x = 0

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

7/12 = 4/x // - 4/x

7/12-(4/x) = 0

7/12-4*x^-1 = 0

-4*x^-1 = -7/12 // : -4

x^-1 = 7/48

-1 < 0

1/(x^1) = 7/48 // * x^1

1 = 7/48*x^1 // : 7/48

48/7 = x^1

x = 48/7

x = 48/7

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