7/x-4+1/x=7/x-4

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Solution for 7/x-4+1/x=7/x-4 equation:


D( x )

x = 0

x = 0

x = 0

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

7/x+1/x-4 = 7/x-4 // - 7/x-4

7/x+1/x-(7/x)-4+4 = 0

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

1*x^-1 = 0 // : 1

x^-1 = 0

x naleu017Cy do O

x belongs to the empty set

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