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

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


D( x )

3*x = 0

x = 0

3*x = 0

3*x = 0

3*x = 0 // : 3

x = 0

x = 0

x = 0

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

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

7/x-(7/(3*x))+4 = 0

7/x+(-7/3)*x^-1+4 = 0

14/3*x^-1 = -4 // : 14/3

x^-1 = -6/7

-1 < 0

1/(x^1) = -6/7 // * x^1

1 = -6/7*x^1 // : -6/7

-7/6 = x^1

x = -7/6

x = -7/6

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