1/75=4/x

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Solution for 1/75=4/x equation: 


D( x )

x = 0

x = 0

x = 0

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

1/75 = 4/x // - 4/x

1/75-(4/x) = 0

1/75-4*x^-1 = 0

-4*x^-1 = -1/75 // : -4

x^-1 = 1/300

-1 < 0

1/(x^1) = 1/300 // * x^1

1 = 1/300*x^1 // : 1/300

300 = x^1

x = 300

x = 300

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