Gylfi Sigurdsson, Dominic Calvert-Lewin & Lucas Digne were making life hard for the home side but they weren't able to put one past the Arsenal Captain.
Arsenal also kicked off their Europa League campaign with a home win against Vorskla in front of their home fans on Thursday night.
"Leno will improve and learn with us".
Arsenal settled in faster in this game with Gabon worldwide getting close to giving his side the lead but he was found in an offside position in the 10th minute. Leno is a younger goalkeeper and he is coming here with a big future, but now, it's a very competitive position. He's started the season very well and we think he's giving us the performance we want.
Lacazette opened the scoring with a well-taken strike, three minutes before Aubameyang's contentious tap-in secured the win.
Aubameyang made way for Alex Iwobi as the game headed towards its final 20 minutes with the home side and control and Everton's spark having deserted them.
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A top four finish in the Premier League would insure that Arsenal once again compete in Europe's top club competition after a two year absence and Emery did not play down its importance. Football is like that.
"In 90 minutes there are moments for the opposition and moments for us", the Spaniard added.
Sustaining such a record will surely see them fail to reach their objectives this season, but Emery believes he already knows what must be done in order to rectify the problem.
While it was a pair of strikers who sealed a fourth league victory in a row along with a win in the Europa League it was as much a day to celebrate for Arsenal's oft-criticized defense, and the goalkeeper behind it.
As a result Silva is now priced at 16/1 in the dreaded Premier League Sack Race, after bookmakers cut his odds from 20/1.
"That said I expect the hosts to give them a real game in what should be a cracking derby.Michael's Predication: West Ham 1-3 Chelsea". We had just one player in our box and it was three against one and it was clear where our defender was and where the goalscorer was.
Cazorla has never played under Emery, but spoke to the former Sevilla and Paris St-Germain manager this summer before he took charge at the Emirates.