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x in (-oo:+oo)
((1-2*x)^1)/2 = -5*x-4 // + -5*x-4
((1-2*x)^1)/2-(-5*x)+4 = 0
(1-2*x)/2+5*x+4 = 0
(1-2*x)/2+(2*5*x)/2+(2*4)/2 = 0
2*5*x-2*x+2*4+1 = 0
8*x+1+8 = 0
8*x+9 = 0
(8*x+9)/2 = 0
(8*x+9)/2 = 0 // * 2
8*x+9 = 0
8*x+9 = 0 // - 9
8*x = -9 // : 8
x = -9/8
x = -9/8
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