sorry my equations were kinda rough, as like I said, I made them up so they were likely to end up nasty. remember, you may get fractions, that doesn't mean you're doing it wrong. like my problem. fractions don't mean your answer is wrong, sometimes the answers are fractions. this will happen a lot in algebra 2 so don't freak out if you get fractions, although in previous classes teachers give you equations where the numbers even out perfectly. im in algebra 2 and it's not like that anymore, so get used to it. you just gotta make sure you did the problem right.
I hope I helped... this was kinda hard to type up lol. xD