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x in (-oo:+oo)
X-((1/2)*x)+3 = 2*(x-(x/4))+1 // - 2*(x-(x/4))+1
X-(2*(x-(x/4)))-((1/2)*x)-1+3 = 0
X-2*(x-(x/4))+(-1/2)*x-1+3 = 0
X-2*3/4*x-x/2-1+3 = 0
(2*X)/2+(-2*3/4*2*x)/2-x/2+(-1*2)/2+(2*3)/2 = 0
2*X-2*3/4*2*x-x-1*2+2*3 = 0
2*X-3*x-x-2+6 = 0
2*X-4*x-2+6 = 0
2*X-4*x+4 = 0
(2*X-4*x+4)/2 = 0
(2*X-4*x+4)/2 = 0 // * 2
2*X-4*x+4 = 0
2*X-4*x+4 = 0 // - 2*X+4
-4*x = -(2*X+4) // : -4
x = (-(2*X+4))/(-4)
x = (2*X+4)/4
x = (2*X+4)/4
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