How to solve simultaneous equations by substitution скачать в хорошем качестве

How to solve simultaneous equations by substitution

How to solve simultaneous equations by substitution My new course ‘How to good at mathematics - and great at fractions! is now live on Udemy: https://www.udemy.com/how-you-can-be-... or click here for a limited 50% discount!: http://www.udemy.com/how-you-can-be-g... The course contains around 3 hours of video, quizzes and a copy of my book 'How to get an A in maths.' All the way through to GCSE and just in time for revision. This video is all about how to solve a simultaneous linear equation by substitution and forms part of the playlist 'Answers to tough questions.' It's a particularly hard math question and you might need to be aware of some of the basic principles, such as quadratic formula or equation of a circle. Like a lot of algebra math it needs to be logically thought through and you'll get extra credit for showing your working. Solving by substitution isn't particularly common on most exams, but it's usually worth around 5 marks, so very worthwhile to practice a couple of questions - just in case! I hope the video helps and please do leave a comment - thanks! Subscribe to Simon Deacon maths for more great math videos http://www.youtube.com/subscription_c... Visit playlists to help you get more from your studies 3 minute quick reminder math - get extra exam credit    • 3 minute quick reminder maths - get extra ...   GCSE - everything you need to know to get great grades    • GCSE Higher Level - everything you need to...   How to solve linear equations    • How to solve linear equations   .. and many more. ‘How to get an A in maths’ is now available on Amazon and packed full of hints, tips and techniques to help you get the very best from your studies. Or, first chapter FREE on my website http://www.mathswrap.co.uk - real maths, tips and techniques. http://www.mathswrap.co.uk is full GCSE past papers, questions by topic and hints and tips to help you get the very best from your studies. Please also add any suggestions for future videos on my Google+ page https://plus.google.com/u/0/+SimonDea...