(x-18)/x=0.75

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Solution for (x-18)/x=0.75 equation: 


D( x )

x = 0

x = 0

x = 0

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

(x-18)/x = 0.75 // - 0.75

(x-18)/x-0.75 = 0

(x-18)/x+(-0.75*x)/x = 0

x-0.75*x-18 = 0

0.25*x-18 = 0

(0.25*x-18)/x = 0

(0.25*x-18)/x = 0 // * x

0.25*x-18 = 0

0.25*x-18 = 0 // + 18

0.25*x = 18 // : 0.25

x = 18/0.25

x = 72

x = 72

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