Tim Greenwood's telepathy notwithstanding .... If the lad wants to get extra kudos points from teacher, plot the equations out on a graph. Normally with simultaneous equations you're looking for a unique answer for x & y (i.e. where the graph lines of each equation meet). If you plot those 2 lines out you'll notice they'll be parallel. So the question of trying to "solve" those equations is equivalent to finding the point where 2 parallel lines meet.
The pics make it more obvious (and sometimes get more marks for showing you know how to plot a graph and use it). glongbot > From: [EMAIL PROTECTED] > To: [email protected] > Date: Fri, 2 Nov 2007 22:28:56 +0000 > Subject: Re: [LU] [NON LU] Maths question > > To clear one thing up, it wasn't a misprint, the class was set a challenge > to work out the answer. Our first thoughts were that it didn't work out, > which is a valid answer, however, he wanted to make sure that he had all of > the bases covered, I think like all 13 year olds he expected that the answer > was difficult when really it wasn't. > > He says 'Thanks' to all of those that offered answers and also pointed out > that a special thanks should go to tim greenwood who appeared to post the > answer one minute before the question had been circulated to the list > (according to my inbox timestamps). > > Cheers > > Chris > > ----- Original Message ----- > From: <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Friday, November 02, 2007 7:59 PM > Subject: [LU] [NON LU] Maths question > > > My son has got a simultaneous equation that he has to comment on and he is > > a > > bit stuck at the moment, could anyone offer advice. > > The equation; > > x + 2y = 6 > > x + 2y = 7 > > He has tried the usual subtraction / addition and multiplication routes > > but > > hasn't got an answer that actually works. > > My answer was that it doesn't work, but I don't think that I can be right. > > Any help would be appreciated. > > > > Cheers > > > > Chris > > > > > > _______________________________________________ > > the Leeds List is an unmoderated mailing list and the list administrators > > accept no liability for the personal views and opinions of contributors. > > Leedslist mailing list > > [email protected] > > http://list.zetnet.co.uk/mailman/listinfo/leedslist > > 6 in a bloody row! > > > > _______________________________________________ > the Leeds List is an unmoderated mailing list and the list administrators > accept no liability for the personal views and opinions of contributors. > Leedslist mailing list > [email protected] > http://list.zetnet.co.uk/mailman/listinfo/leedslist > 6 in a bloody row! _________________________________________________________________ Get free emoticon packs and customisation from Windows Live. http://www.pimpmylive.co.uk _______________________________________________ the Leeds List is an unmoderated mailing list and the list administrators accept no liability for the personal views and opinions of contributors. Leedslist mailing list [email protected] http://list.zetnet.co.uk/mailman/listinfo/leedslist 6 in a bloody row!
