I'm just wondering if anyone can give me a few tips here so that I can understand the concepts behind simultaneous equations three 3 unknowns. I find solving equations really tough . I work part time and thus have no time left to take extra classes. Can you guys suggest any online resource that can assist me with this subject?

How about giving a little more particulars of what exactly is your difficulty with simultaneous equations three 3 unknowns? This would assist in finding out ways to look for an answer. Finding a coach these days fast enough and that too at a fee that you can manage to pay for can be a wearisome task. On the other hand, these days there are programs that are available to help you with your math problems. All you have to do is to choose the most suited one. With just a click the correct answer pops up. Not only this, it hand-holds you to arriving at the answer. This way you also get to find out how to get at the right answer.

I have tried out several software. I would confidently say that Algebrator has helped me to come to grips with my problems on angle-angle similarity, distance of points and trigonometric functions. All I did was to simply key in the problem. The answer showed up almost right away showing all the steps to the result. It was quite easy to follow. I have relied on this for my math classes to figure out Remedial Algebra and Intermediate algebra. I would highly recommend you to try out Algebrator.

I remember having problems with factoring polynomials, side-angle-side similarity and radical expressions. Algebrator is a really great piece of algebra software. I have used it through several math classes - Intermediate algebra, Basic Math and Remedial Algebra. I would simply type in the problem from a workbook and by clicking on Solve, step by step solution would appear. The program is highly recommended.