Is it a good idea to take F7&F9 together?

I intend to take paper F7&F9 this December, since they are the only papers I have left for the skill module.

Have just started studying F7 and found it quite challenging and there seems to be a lot to take in, I am now wondering whether it is too ambitious of me to try to tackle those two papers together , considering I also have a full time job and family to look after. Or is it doable, so long I put in an hour’s study in from now? Not sure how many study hours are required in order to pass two?