I finished my masters majoring in Analytical Business Intelligence and Data Mining, and have a strong mathematical background. I used to be a student lecturer for 3 years in Mathematical Analysis, Computer Science and Business Informatics, so I know how to explain math in a way that beginners understand it for sure.
I will solve your problems by showing detailed steps of each transformation made, will also answer any questions through skype or email.
As I am new here you might have trust issues, so I am willing to pay 100% back if unsatisfied with the work.