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x in (-oo:+oo)
(1/2)*x+2 = 4*x+1/4 // - 4*x+1/4
(1/2)*x-(4*x)-(1/4)+2 = 0
(1/2)*x-4*x-1/4+2 = 0
7/4-7/2*x = 0 // - 7/4
-7/2*x = -7/4 // : -7/2
x = -7/4/(-7/2)
x = 1/2
x = 1/2
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