4/x-7=-5

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


D( x )

x = 0

x = 0

x = 0

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

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

4/x-7+5 = 0

4*x^-1 = 2 // : 4

x^-1 = 1/2

-1 < 0

1/(x^1) = 1/2 // * x^1

1 = 1/2*x^1 // : 1/2

2 = x^1

x = 2

x = 2

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