(10+3/x)=40

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Solution for (10+3/x)=40 equation: 


D( x )

x = 0

x = 0

x = 0

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

3/x+10 = 40 // - 40

3/x-40+10 = 0

3*x^-1 = 30 // : 3

x^-1 = 10

-1 < 0

1/(x^1) = 10 // * x^1

1 = 10*x^1 // : 10

1/10 = x^1

x = 1/10

x = 1/10

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