(4/x)+3=12

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Solution for (4/x)+3=12 equation: 


D( x )

x = 0

x = 0

x = 0

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

4/x+3 = 12 // - 12

4/x-12+3 = 0

4*x^-1 = 9 // : 4

x^-1 = 9/4

-1 < 0

1/(x^1) = 9/4 // * x^1

1 = 9/4*x^1 // : 9/4

4/9 = x^1

x = 4/9

x = 4/9

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