00:01okay so I want to look at how to solve this one in a simple way so here you can
00:08do factorization on top here
00:12with the top expression you have N bracket would be N plus 3 all on N equals 15 simple as
00:25that
00:26as is when you factorize N out you will be having N plus what 3 so if N cancel N
00:36you have N plus 3 equals 15
00:40so N is equal to 15 minus 3 and here N is equal to 12 as simple as that
