Western Normal University Edition First Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 1
People's Education Press First Grade Mathematics Volume 1
People's Education Press Second Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
People's Education Press Third Grade Mathematics Volume 1
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
Qingdao Edition Seventh Grade Mathematics Volume 1
Beijing Normal University Edition Fifth Grade Mathematics Volume 1
Hebei Education Edition Third Grade Mathematics Volume 1
Hebei Education Edition Seventh Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
People's Education High School Mathematics Edition B Compulsory Course 2
Qingdao Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 2
Hebei Education Edition Fourth Grade Mathematics Volume 2
Category | Format | Size |
---|---|---|
Beijing Normal University eighth grade first volume mathematics | pptx | 6 MB |
Description
"System of linear equations in three variables" System of linear equations in two variables PPT courseware
1. Create scenarios and introduce new lessons
It is known that the sum of the three numbers A, B, and C is 23, the number A is 1 greater than the number B, and the sum of twice the number A and the number B is 20 greater than the number C. Find these three numbers.
In the above problem, assuming that the number A is x, the number B is y, and the number C is z, the system of equations can be obtained from the meaning of the question:
x+y+z=23
2x+y-z=20
x-y=1
In the above problem, assuming that the number A is x, the number B is y, and the number C is z, the system of equations can be obtained from the meaning of the question:
2. Learn by analogy and explore new knowledge
Can we solve this system of linear equations in three variables?
What is the difference between elimination when solving a system of linear equations in three variables and elimination when solving a system of linear equations in two variables? When solving the above system of equations, can you first eliminate the unknown y (or z) to obtain the solution to the system of equations?
3. Understand and consolidate
Use the methods you learned to solve equations:
Observe (2), this system of equations is different from the previous ones. The three equations are all missing "who", which one is better to eliminate, and what method should be used to eliminate it?
4.Practical application
There are 651 students in three grades of junior high school in a school. There are 10% more students in eighth grade than in ninth grade. There are 5% more students in seventh grade than in eighth grade. How many students are there in each of the three grades?
5. Class summary
(1) The concept of a system of linear equations in three variables;
(2)Solution to a system of linear equations in three variables;
(3) Let’s talk about the ideas for solving multivariate linear equations.
Keywords: system of linear equations in two variables courseware, system of linear equations in three variables courseware, Beijing Normal University edition eighth grade mathematics volume PPT courseware, eighth grade mathematics slide courseware download, system of linear equations in two variables PPT courseware download, system of linear equations in three variables PPT courseware download, .ppt format
For more information about the PPT courseware "System of linear equations in two variables and system of linear equations in three variables", please click on the "System of linear equations in two variables ppt System of linear equations in three variables ppt" tag.
"Simple Three-dimensional Linear Equations" PPT courseware:
"Simple System of Linear Equations in Three Variables" PPT Courseware Part One: Review and New Knowledge Knowledge Review What are the methods for solving systems of linear equations in two variables? What is their essence? New Lesson Introduction Question Xiao Ming has 12 denominations of 1 yuan, 2 yuan, and 5 yuan on hand..
"Simple Three-dimensional Linear Equations" PPT:
"Simple Tridimensional Linear Equations" PPT Part 1 content: Content introduction (1) The definition of a tridimensional linear equation contains three unknowns, and the degree of the terms containing the unknowns is 1. An integral equation like this is called a tridimensional linear equation . (2) Three yuan per...
"System of linear equations in three variables" PPT courseware 2:
"System of linear equations in three variables" PPT courseware 2 Definition Contains three unknowns, and the degree of the terms containing the unknowns is 1. An integral equation like this is called a linear equation in three variables. Solution: Suppose Rascal Rabbit is x years old, Garfield is y years old, and Mickey Mouse is z years old, x+y+z=26, ① x-..
File Info
Update Time: 2024-11-22
This template belongs to Mathematics courseware Beijing Normal University eighth grade first volume mathematics industry PPT template
"System of linear equations in three variables" System of linear equations in two variables PPT courseware Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "System of linear equations in three variables" System of linear equations in two variables PPT courseware is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"System of linear equations in three variables" System of linear equations in two variables PPT courseware, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)