The next is 3 then 8. The 8 remains and they keep subtracting 3.
3, -6, 12, 4, 20, ?
3. Ignore the 8's in the sequence and you get 9, 6, 4, 3,_. 9-3=6 6-2=4 4-1=3 3-0=3
10
The answer for the number that follows the sequence 4-6-3-7-9-6-10 is 12. The pattern is +2,-3,+4,+2,-3,+4,.....,+2,-3,+4,...
18
6
The next number in the sequence is 18. It's +1, +2, +3, +4, ....
3, -6, 12, 4, 20, ?
3. Ignore the 8's in the sequence and you get 9, 6, 4, 3,_. 9-3=6 6-2=4 4-1=3 3-0=3
10
The answer for the number that follows the sequence 4-6-3-7-9-6-10 is 12. The pattern is +2,-3,+4,+2,-3,+4,.....,+2,-3,+4,...
18
18
18
8 -1 then +3
3
18. 3+1=4, 4+2=6, 6+3=9, 9+4=13, 13+5=18.