Number 35 is missing at the end position (7*5).
IF 1,3,3=5 9,7,4=8 11,14,10=15 20,16,12=18 Than 3,6,7=?
If 2,6=5 4,9=7 6,11=8 8,15=11 then 12,18=?
If the following is true, can you find the value of (4 + 9)?
7 + 7 = 2 8 + 8 = 4 8 + 5 = 1 6 + 9 = 3 10 + 11 = 9