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x in (-oo:+oo)
-8/3 = (-1/4)*x-(1/2) // - (-1/4)*x-(1/2)
1/2-((-1/4)*x)-8/3 = 0
(1/4)*x-8/3+1/2 = 0
1/4*x-13/6 = 0 // + 13/6
1/4*x = 13/6 // : 1/4
x = 13/6/1/4
x = 26/3
x = 26/3
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