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x in (-oo:+oo)
2*x-(1/4) = 55 // - 55
2*x-(1/4)-55 = 0
2*x-1/4-55 = 0
2*x-221/4 = 0 // + 221/4
2*x = 221/4 // : 2
x = 221/4/2
x = 221/8
x = 221/8
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