7.5=(x/25)/((1.74-x)/100)

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Solution for 7.5=(x/25)/((1.74-x)/100) equation: 


D( x )

(1.74-x)/100 = 0

(1.74-x)/100 = 0

(1.74-x)/100 = 0

1.74-x = 0 // - 1.74

-x = -1.74 // * -1

x = 1.74

x in (-oo:1.74) U (1.74:+oo)

7.5 = (x/25)/((1.74-x)/100) // - (x/25)/((1.74-x)/100)

7.5-((x/25)/((1.74-x)/100)) = 0

7.5-4*x*(1.74-x)^-1 = 0

(-4*x)/(1.74-x)+7.5 = 0

(-4*x)/(1.74-x)+(7.5*(1.74-x))/(1.74-x) = 0

7.5*(1.74-x)-4*x = 0

13.05-11.5*x = 0

(13.05-11.5*x)/(1.74-x) = 0

(13.05-11.5*x)/(1.74-x) = 0 // * 1.74-x

13.05-11.5*x = 0

13.05-11.5*x = 0 // - 13.05

-11.5*x = -13.05 // : -11.5

x = -13.05/(-11.5)

x = 1.13478261

x = 1.13478261

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