(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)

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

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

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

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

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

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

3*x-4*x-8 = 0

-x-8 = 0

(-x-8)/(4*x) = 0

(-x-8)/(4*x) = 0 // * 4*x

-x-8 = 0

-x-8 = 0 // + 8

-x = 8 // * -1

x = -8

x = -8

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