XW Info

This puzzle appeared on Wednesday, January 2, 2013 in syndication. The original New York Times publication date is shown below.
Wednesday, November 28, 2012
 B A G E L U R S A O T I S I R A Q I N O E L A H M E X P L U S Y I S S I X T E E N A L E A T E E G A S T R I T E S T E N D O R S E S O M E Y E A T S N A Y S O U I T O S S E T D X M I N U S Y I S F O U R P O T E T A T A O L D A R T M E T A L S T D S I D E A M E N S A U T E E D O M S R A R E R N A X I S T E N A N D Y I S S I X I R E D E G O S T I E T O N E D S R E S T E S S E X
© 2012, The New York Times
JimH notes: x + y = 16 and x - y = 4, so substituting...
x = 4 + y
y + (4 + y) = 16
y + y = 16 - 4
2y = 12, so y = 6
x + 6 = 16, so x = 10
 1 Goose egg : BAGEL 6 "Major" beast : URSA 10 Porter's regretful Miss : OTIS 14 From Basra, say : IRAQI 15 Time to stuff stockings : NOEL 16 [sigh] : AHME 17 Start of an algebra problem : XPLUSYISSIXTEEN 20 Toby filler : ALE 21 To ___ (perfectly) : ATEE 22 Heating option : GAS 23 Least fresh : TRITEST 27 Throw one's support behind : ENDORSE 29 "___ nerve!" : SOME 30 Poet with a "fanatic's heart" : YEATS 32 Passage preventers, often : NAYS 33 Québec assent : OUI 34 Jettison : TOSS 35 Outgoing flight stat : ETD 36 The rest of the algebra problem : XMINUSYISFOUR 41 Kitty : POT 42 "L'___ c'est moi" : ETAT 43 Alternative to Yahoo! : AOL 45 It has feathers and flies : DART 47 Black Sabbath's genre : METAL 49 Benchmarks: Abbr. : STDS 50 Think tank types : IDEAMEN 52 Like stir-fry : SAUTEED 54 Meditation sounds : OMS 55 One-in-a-million : RARE 57 Messenger ___ : RNA 58 Answer to the algebra problem : XISTENANDYISSIX 64 Steaming : IRED 65 Causes of some celebrity clashes : EGOS 66 Link with : TIETO 67 Fictional Flanders and Devine : NEDS 68 Kind of day for a competitive cyclist : REST 69 Historic English county : ESSEX
 1 Beiderbecke of jazz : BIX 2 Dadaist Jean : ARP 3 Guy's mate : GAL 4 Regard as identical : EQUATE 5 Fine cotton thread : LISLE 6 Prefix with -form : UNI 7 Parks in front of a bus? : ROSA 8 Sonnet part : SESTET 9 Xenophobes' fear : ALIENS 10 Muesli morsel : OAT 11 Mrs. Robinson's movie : THEGRADUATE 12 "Fine with me" : IMEASY 13 Classic quintet : SENSES 18 Response to "Who, me?" : YESYOU 19 Marked, in a way : XED 23 Menu general : TSO 24 Gumbo thickener : ROUX 25 "Wow!" : IMIMPRESSED 26 Actress Harper of "No Country for Old Men" : TESS 28 Savvy about : ONTO 31 Until now : ASYET 34 Cause of a boom and bust? : TNT 35 Young newt : EFT 37 Smidge : IOTA 38 "Take ___ a sign" : ITAS 39 Subject of a cap, in sports : SALARY 40 Didn't go by foot : RODE 44 "Dropped" drug : LSD 45 Compound in Agent Orange : DIOXIN 46 Venerate : ADMIRE 47 More Scroogelike : MEANER 48 Tee off : ENRAGE 49 Equilibrium : STASIS 51 Battlefield fare: Abbr. : MRE 53 Pull together : UNITE 56 Slaughter in baseball : ENOS 59 Some highlight reel features, for short : TDS 60 Summer hrs. : DST 61 Parisian's possessive : SES 62 Ore suffix : ITE 63 Affectionate sign-off : XOX