[tex]|1-2x|\leq3\\-3\leq1-2x\leq3\text{ (sc\u adem 1)}\\-4\leq-2x\leq2\text{ (\^imp\u ar\c tim la 2)}\\-2\leq-x\leq1\text{ (\^inmul\c tim cu (-1) )}\\-1\leq x\leq2\rightarrow x\in[-1,2]\rightarrow A=[-1,2][/tex]
