5-x/x+3/4=7/x

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Solution for 5-x/x+3/4=7/x equation: 


D( x )

x = 0

x = 0

x = 0

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

3/4-(x/x)+5 = 7/x // - 7/x

3/4-(7/x)-(x/x)+5 = 0

3/4-7*x^-1-1+5 = 0

-7*x^-1 = -19/4 // : -7

x^-1 = 19/28

-1 < 0

1/(x^1) = 19/28 // * x^1

1 = 19/28*x^1 // : 19/28

28/19 = x^1

x = 28/19

x = 28/19

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