Question

12 +13=7
14+15=11
16+17=15
18+19=?
​

Answer 1

answer - 19

you just have to add the number

1+9+1+8

it's not that tough

Answer 2

Answer:

19

Step-by-step explanation:

1+2+1+3=7

1+4+1+5=11

similarly

1+8+1+9=19