Mesut Ozil scored the only goal of the game with a terrific volley from distance, and the Gunners were able to hold on for their first victory in four outings.
Newcastle had their moments, but this is now nine games without a win for Rafael Benitez's team who now sit closer to the relegation zone.
Find out how all of the action unfolded on in North London courtesy of Sports Mole's minute-by-minute updates below.
ARSENAL SUBSTITUTES: Ospina, Chambers, Kolasinac, Coquelin, Elneny, Welbeck, Giroud
NEWCASTLE UNITED SUBSTITUTES: Darlow, Clark, Dummett, Diame, Aarons, Ritchie, Gayle
Down at the bottom, Palace have moved out of the relegation zone and above Newcastle. The Magpies now sit in 17th place in the standings...
Even given their lack of wins in recent games, I'm sure that Arsenal fans will expect a wider margin of victory today.
ARSENAL XI: Cech; Bellerin, Koscielny, Monreal, Maitland-Niles; Xhaka, Wilshere, Iwobi; Ozil, Sanchez, Lacazette
NEWCASTLE UNITED XI: Elliot; Yedlin, Lejeune, Lascelles, Manquillo; Hayden, Merino; Atsu, Perez, Murphy; Joselu
If you would like to read out on-the-whistle match report, you can do so by clicking here. Goodbye for now.