Sorry I don't mean to be rude, just thought I'd say please let me know as soon as possible because it's driving me mad lol!
I am doing A level maths at the moment, but can't seem to work this out at all :S help would be much appreciated!!
It was to find a rule for this sequence:
when n=1, x=3
when n=2, x=6
when n=3, x=7
when n=4, x=-2
If you can help me, thank you!