I now know how to do the problem. If anyone reading this is masochistic enough to want to know how, let me know and I will share!
#1 & #2 have not done well in math this last year, so over the summer I will be doing Pre-Algebra with them. Based on the math assignments I saw #2 bring home, that looks to be the level they are at. I don't remember doing Pre-Algebra in 7th grade, I think I had it in 9th grade. But then, I had parents who allowed me to wimp out when it came to doing math. Seeing the fight I have with my kids now, I can understand part of why they let me be so slack. Now as a Mom trying to re-learn and learn more advanced levels of math I ever took, I'm determined that come hell or high water my kids will not be allowed to slack in this arena.
Hmm, I'd better go price electric cattle prods.