3/8=(2x-4)/(5x-7)

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Solution for 3/8=(2x-4)/(5x-7) equation: 


D( x )

5*x-7 = 0

5*x-7 = 0

5*x-7 = 0

5*x-7 = 0 // + 7

5*x = 7 // : 5

x = 7/5

x in (-oo:7/5) U (7/5:+oo)

3/8 = (2*x-4)/(5*x-7) // - (2*x-4)/(5*x-7)

3/8-((2*x-4)/(5*x-7)) = 0

(-1*(2*x-4))/(5*x-7)+3/8 = 0

(-1*8*(2*x-4))/(8*(5*x-7))+(3*(5*x-7))/(8*(5*x-7)) = 0

3*(5*x-7)-1*8*(2*x-4) = 0

11-x = 0

(11-x)/(8*(5*x-7)) = 0

(11-x)/(8*(5*x-7)) = 0 // * 8*(5*x-7)

11-x = 0

11-x = 0 // - 11

-x = -11 // * -1

x = 11

x = 11

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