2.4/1.8=7.2/x

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Solution for 2.4/1.8=7.2/x equation: 


D( x )

x = 0

x = 0

x = 0

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

2.4/1.8 = 7.2/x // - 7.2/x

2.4/1.8-(7.2/x) = 0

2.4/1.8-7.2*x^-1 = 0

-7.2*x^-1 = -1.33333333 // : -7.2

x^-1 = 0.18518518

-1 < 0

1/(x^1) = 0.18518518 // * x^1

1 = 0.18518518*x^1 // : 0.18518518

5.40000015 = x^1

x = 5.40000015

x = 5.40000015

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