(4x-5)/(2x+1)

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Solution for (4x-5)/(2x+1) equation: 


D( x )

2*x+1 = 0

2*x+1 = 0

2*x+1 = 0

2*x+1 = 0 // - 1

2*x = -1 // : 2

x = -1/2

x in (-oo:-1/2) U (-1/2:+oo)

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

4*x-5 = 0 // + 5

4*x = 5 // : 4

x = 5/4

x = 5/4

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