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x in (-oo:+oo)
(1/(-2))*x-x-(1/4) = (1/8)*(x+1) // - (1/8)*(x+1)
(1/(-2))*x-((1/8)*(x+1))-x-(1/4) = 0
(-1/8)*(x+1)+(1/(-2))*x-x-1/4 = 0
-1/8*(x+1)-x/2-x-1/4 = 0
(-1/8*2*4*(x+1))/(2*4)+(4*(-x))/(2*4)+(2*4*(-x))/(2*4)+(-1*2)/(2*4) = 0
4*(-x)-1/8*2*4*(x+1)+2*4*(-x)-1*2 = 0
-5*x-8*x-2-1 = 0
-13*x-2-1 = 0
-13*x-3 = 0
(-13*x-3)/(2*4) = 0
(-13*x-3)/(2*4) = 0 // * 2*4
-13*x-3 = 0
-13*x-3 = 0 // + 3
-13*x = 3 // : -13
x = 3/(-13)
x = -3/13
x = -3/13
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