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