Crossword clues for X's out 7 letters:SARGENTMadame X portraitistCEREBRODevice created collaboratively by Professor X and MagnetoALGEBRAIt often involves x'sUNKNOWNx, at timesALGEBRASomething with an "x" factor?OPENSET(x, y), in mathUSSTEELIts NYSE symbol is "X"MONTEROLil Nas X song subtitled "Call Me by Your Name"ALGEBRAMath with x'sNUMERALX, at timesEROTICAX-rated worksSTRIKESBowling x'sALGEBRASubject with an "x" factor?SOCIALSInsta, X, TikTok, etc., informallyMALCOLMX, e.g.SARGENTMadame X painterMUTANTSThe X-Men, famouslyKNEEPADBit of X-Games gearUSSTEELCorporation whose NYSE ticker symbol is XIMAGERSX-ray machines, e.g.SALTIREX-shaped crossASHMOREShawn who plays Iceman in the "X-Men" filmsCANCELSPuts an "X" throughRATINGSX, R, G, et al.STRIKESAlley X'sDIVISORIn x ÷ y, yTENFOLDx 10MAGNETOX-Men villainMAGNETOX-Men villain whose mind can control metal objectsSTANLEECreator of the X-MenMRISCANX-ray alternativePILEGGIHe's Skinner on "The X-Files"CATSCANKind of x-ray imageSARGENTMadame X portraitist John SingerUNKNOWNLike XOBSCENEX-ratedSARGENTMadame X painter John SingerALGEBRAx + y = z studySEEINTOX-ray, perhapsPREQUELX-Men: First Class, for oneMUTANTSThe X-Men, notablyHISMARKX.MONTERONo. 1 Lil Nas X single that won Video of the Year at the V.M.A.s (September, 2021)RONTGENX-ray man.DOGGETTX-Files agent who sounds like what you do if you're a slackerSTRYKERX-Men colonel whose name sounds like he goes around hitting people (he's really more of an armchair bigot)EROTICAX-rated materialINSIDESX-ray subjectDENMARKChristian X's landUNKNOWNX, in algebra