(7/x-1/3)=(1/4)

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Solution for (7/x-1/3)=(1/4) equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x-(1/3) = 1/4 // - 1/4

7/x-(1/3)-(1/4) = 0

7/x-1/3-1/4 = 0

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

x^-1 = 1/12

-1 < 0

1/(x^1) = 1/12 // * x^1

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

12 = x^1

x = 12

x = 12

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