Verified Answer :

the anwser is 13 because the quantity increased by 1 is 14

  1. You find what more than means+
  2. Replace the words with the numbers 18+4(N+1)=14
  3. You move the 18 to the other side and change operations 18+4(N+1)-18=14-18

This gives us 4(N+1)=-4
Next we have to undo the multiplication 4
(N+1)
Divide both sides by 4
4*(N+1)/4=4/4
Resulting in N+1=-1
Get N by itself and we have to subtract 1 from each side
N+1-1=-1-1
N=2