2x-4=(2x-9)/2

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Solution for 2x-4=(2x-9)/2 equation: 


x in (-oo:+oo)

2*x-4 = (2*x-9)/2 // - (2*x-9)/2

2*x-((2*x-9)/2)-4 = 0

(-1*(2*x-9))/2+2*x-4 = 0

(-1*(2*x-9))/2+(2*2*x)/2+(-4*2)/2 = 0

2*2*x-1*(2*x-9)-4*2 = 0

2*x-8+9 = 0

2*x+1 = 0

(2*x+1)/2 = 0

(2*x+1)/2 = 0 // * 2

2*x+1 = 0

2*x+1 = 0 // - 1

2*x = -1 // : 2

x = -1/2

x = -1/2

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