(x-123)/x=1.8

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Solution for (x-123)/x=1.8 equation: 


D( x )

x = 0

x = 0

x = 0

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

(x-123)/x = 1.8 // - 1.8

(x-123)/x-1.8 = 0

(x-123)/x+(-1.8*x)/x = 0

x-1.8*x-123 = 0

-0.8*x-123 = 0

(-0.8*x-123)/x = 0

(-0.8*x-123)/x = 0 // * x

-0.8*x-123 = 0

-0.8*x-123 = 0 // + 123

-0.8*x = 123 // : -0.8

x = 123/(-0.8)

x = -153.75

x = -153.75

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