90/12=22.50/x

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Solution for 90/12=22.50/x equation: 


D( x )

x = 0

x = 0

x = 0

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

90/12 = 22.5/x // - 22.5/x

90/12-(22.5/x) = 0

90/12-22.5*x^-1 = 0

-22.5*x^-1 = -15/2 // : -22.5

x^-1 = 0.33333333

-1 < 0

1/(x^1) = 0.33333333 // * x^1

1 = 0.33333333*x^1 // : 0.33333333

3.00000003 = x^1

x = 3.00000003

x = 3.00000003

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