7/x-4=8/3

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Solution for 7/x-4=8/3 equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x-4 = 8/3 // - 8/3

7/x-(8/3)-4 = 0

7/x-8/3-4 = 0

7*x^-1 = 20/3 // : 7

x^-1 = 20/21

-1 < 0

1/(x^1) = 20/21 // * x^1

1 = 20/21*x^1 // : 20/21

21/20 = x^1

x = 21/20

x = 21/20

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