EVILNess needs algebra help hopefully for the last time

[EVILNess]

It's time for finals, and I am doing these practice tests like crazy for my final on the 28th. I have gotten 40+ of the possible questions right multiple times, but a few are hit or miss to say the least. If a question shows up on the actual final it will look identical except have different numbers.

Long story short I need someone to work some algebra for me so I can compare what I am doing to what is correct.





Any help is much appreciated and I promise I will never ask again. Mainly because I will be done and will never have to do math in an academic setting ever again!