The correct way to phrase this statement is: it will not be as easy as it seems. Sometimes English speakers shorten phrases making them grammatically incorrect. I hope this helps! -Morgan

Only the second one is right. You need the word 'as' twice - on either side of the adjective : as easy as, as big as, as much as, as many as. A variation on this is 'so easy as' , but this is less common, and less correct.