-(7/x-1)+(2-2x)/(x)

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Solution for -(7/x-1)+(2-2x)/(x) equation: 


D( x )

x = 0

x = 0

x = 0

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

(2-(2*x))/x-(7/x)+1 = 0

(2-2*x)/x-7*x^-1+1 = 0

(2-2*x)/x-7/x+1 = 0

(2-2*x)/x-7/x+(1*x)/x = 0

1*x-2*x-7+2 = 0

x-2*x-5 = 0

-x-5 = 0

(-x-5)/x = 0

(-x-5)/x = 0 // * x

-x-5 = 0

-x-5 = 0 // + 5

-x = 5 // * -1

x = -5

x = -5

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