<prompt> Pata x zote ambazo floor floor 2x floor - 12 floor floor x 2 floor.  <response>: Zingatia kuwa floor 2x floor ni nambari kamili, kwa hivyo inafuata kwamba floor floor 2x floor - 12 floor floor 2x floor - 1. Pia, floor x 2 floor floor x floor 2. Kwa hivyo, mlinganyo wetu unakuwa floor 2x floor floor x floor 3.Hebu n floor x floor, hivyo n le x n 1.Ikiwa x n frac12, basi 2n le x 2n 1, hivyo floor 2x floor 2n, na2n n 3,ambayo ina maana n 3.Ikiwa x ge n frac12, basi 2n 1 le x 2n 2, hivyo floor 2x floor 2n 1, na2n 1 n 3,ambayo ina maana n 2.Kwa hivyo, seti ya suluhu ni x in left frac52, frac72 kulia. 