(5-x)/x+0.75=7/x

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Solution for (5-x)/x+0.75=7/x equation: 


D( x )

x = 0

x = 0

x = 0

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

(5-x)/x+0.75 = 7/x // - 7/x

(5-x)/x-(7/x)+0.75 = 0

(5-x)/x-7*x^-1+0.75 = 0

(5-x)/x-7/x+0.75 = 0

(5-x)/x-7/x+(0.75*x)/x = 0

0.75*x-x-7+5 = 0

0.75*x-x-2 = 0

-0.25*x-2 = 0

(-0.25*x-2)/x = 0

(-0.25*x-2)/x = 0 // * x

-0.25*x-2 = 0

-0.25*x-2 = 0 // + 2

-0.25*x = 2 // : -0.25

x = 2/(-0.25)

x = -8

x = -8

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