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x in (-oo:+oo)
2*x-(1/2) = 108 // - 108
2*x-(1/2)-108 = 0
2*x-1/2-108 = 0
2*x-217/2 = 0 // + 217/2
2*x = 217/2 // : 2
x = 217/2/2
x = 217/4
x = 217/4
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