Wikipedia:Reference desk/Archives/Mathematics/2015 February 3

= February 3 =

MATHEMATICS
03/02/2015.                                           1.1 Use the substitution method to solve the following simultaneous equation. 1.2 b=2a 6a-b=8. 1.3 q=p-5 p+2p=20. 1.4 2x+3y=2 x-y=1. 1.5 3x-y=1 x-2y=-8. — Preceding unsigned comment added by 2A03:2880:3010:6FF6:FACE:B00C:0:1 (talk) 05:16, 3 February 2015 (UTC)
 * Welcome to . Your question appears to be a homework question. I apologize if this is a misinterpretation, but it is our aim here not to do people's homework for them, but to merely aid them in doing it themselves. Letting someone else do your homework does not help you learn nearly as much as doing it yourself. Please attempt to solve the problem or answer the question yourself first. If you need help with a specific part of your homework, feel free to tell us where you are stuck and ask for help. If you need help grasping the concept of a problem, by all means let us know. -- Kinu  t/c 05:21, 3 February 2015 (UTC)
 * Welcome to . Your question appears to be a homework question. I apologize if this is a misinterpretation, but it is our aim here not to do people's homework for them, but to merely aid them in doing it themselves. Letting someone else do your homework does not help you learn nearly as much as doing it yourself. Please attempt to solve the problem or answer the question yourself first. If you need help with a specific part of your homework, feel free to tell us where you are stuck and ask for help. If you need help grasping the concept of a problem, by all means let us know. -- Kinu  t/c 05:21, 3 February 2015 (UTC)


 * Our article System of linear equations may be helpful. Bo Jacoby (talk) 12:23, 3 February 2015 (UTC).


 * Work the problem even if you're not sure what to do. Keep trying. When you get an answer, you can check to see if you're correct by plugging your solution values back in to the original equations, and seeing if they evaluate to true expressions. If not, start over. It's easier to do something correct from scratch than to catch a mistake you made in a page full of calculations. Also consider asking a classmate for help, or your instructor. If this is a college level class, your professor and TA should both have office hours. Math is much more fun and rewarding if you can work in a group, so do engage with your classmates too. 14:39, 3 February 2015 (UTC)


 * I have done all three questions. You can have my solutions for $40 dollars per hour. I spend 1 hour solving it. Alternatively you can solve it yourself. 175.45.116.65 (talk) 00:45, 4 February 2015 (UTC)


 * I have done all four questions. You are welcome to buy my solutions. I charge $300 dollars per hour for this work, but since it only took me 6 minutes the cost to you is $30 dollars. This is cheaper than the previous solver. In addition, you can be more confident in my work for the following reasons: first, I counted the number of questions you posted correctly (four, not three); and, second, the previous solver does not appear to have spotted the typing error in question 1.3. I have three different solutions for question 1.3, depending on whether you wish to stick with the question as you originally typed it, or which of the two possible obvious corrections to the typo you wish to use. As further proof that I am a better and more reliable solver than the other guy (as well as cheaper!), I will tell you that I expect the correct version of problem 1.3 to be: q=p-5 p+2q=20. As further evidence of my efficiency and reliability in diverse fields, I note that I have made more than 10,000 edits to Wikipedia, while my rival has made only 3. I am also prepared to furnish you with notarised copies of my degree certificates, which confirm that I am (inter alia) a mathematics graduate from one of the world's greatest and most well-known universities, and studied at a college within that university noted for its mathematical prowess. I am prepared to compensate you for losses incurred in the use of my solutions, to a maximum of $250,000, should my solutions be found to be incorrect. Finally, as a special bonus, each purchase of solutions from me will include not just the solutions, but also your choice of an elegant six-piece set of wine glasses or a small cuddly teddy bear suitable for children between the ages of 7 and 15. RomanSpa (talk) 03:28, 4 February 2015 (UTC)
 * Thus does capitalism work, and thus is a new service industry born... RomanSpa (talk) 03:31, 4 February 2015 (UTC)
 * Alternatively, and cheaper still, you might solve the equations yourself. I promise you that they're not difficult once you try; just carefully follow the instructions given to you by your teacher, and you'll be fine. RomanSpa (talk) 03:34, 4 February 2015 (UTC)
 * Will you also charge for the time it took you to write down this offer? It probably took more than 6 minutes. -- Meni Rosenfeld (talk) 14:49, 4 February 2015 (UTC)
 * And we've all had a valuable lesson about transaction costs! —Tamfang (talk) 08:51, 5 February 2015 (UTC)