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4-((2*X-1)/4) = 1/2-((9*x)/8) // - 1/2-((9*x)/8)
(9*x)/8-((2*X-1)/4)-(1/2)+4 = 0
(9*x)/8-((2*X-1)/4)-1/2+4 = 0
(-1*(2*X-1))/4+(9*x)/8-1/2+4 = 0
(-1*2*8*(2*X-1))/(2*4*8)+(2*4*9*x)/(2*4*8)+(-1*4*8)/(2*4*8)+(2*8*4^2)/(2*4*8) = 0
2*4*9*x-1*2*8*(2*X-1)-1*4*8+2*8*4^2 = 0
72*x-32*X-32+16+256 = 0
72*x-32*X-16+256 = 0
72*x-32*X+240 = 0
(72*x-32*X+240)/(2*4*8) = 0
(72*x-32*X+240)/(2*4*8) = 0 // * 2*4*8
72*x-32*X+240 = 0
72*x-32*X+240 = 0 // - 240-32*X
72*x = -(240-32*X) // : 72
x = (-(240-32*X))/72
x = (-(240-32*X))/72
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