30/x+7=13

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Solution for 30/x+7=13 equation: 


D( x )

x = 0

x = 0

x = 0

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

30/x+7 = 13 // - 13

30/x-13+7 = 0

30*x^-1 = 6 // : 30

x^-1 = 1/5

-1 < 0

1/(x^1) = 1/5 // * x^1

1 = 1/5*x^1 // : 1/5

5 = x^1

x = 5

x = 5

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