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
People's Education Press Third Grade Mathematics Volume 1
Hebei Education Edition Third Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 1
Qingdao Edition Seventh Grade Mathematics Volume 1
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
Hebei Education Edition Seventh Grade Mathematics Volume 2
People's Education High School Mathematics Edition B Compulsory Course 2
Jiangsu Education Edition Fourth Grade Mathematics Volume 1
People's Education Press First Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 2
Category | Format | Size |
---|---|---|
Hebei Education Edition Seventh Grade Mathematics Volume 2 | pptx | 6 MB |
Description
"System of linear equations in two variables" PPT
Part One: Review and Objectives
review review
An equation that contains an unknown number, the degree of the unknown number is 1, and the coefficient is not equal to 0 is called a linear equation of one variable.
The value of the unknown that makes the left and right sides of the equation equal is called the solution of the equation.
learning target:
1. Understand the concepts of linear equations of two variables and systems of linear equations of two variables.
2. Understand the concepts of solutions to linear equations of two variables and solutions to systems of linear equations of two variables.
3. And will check whether the value of a set of unknown numbers is the solution of the equation or the solution of the system of equations
Study guide:
Read the contents of P2~3 of the textbook carefully and complete:
1. Understand the concepts of linear equations of two variables, systems of linear equations of two variables and their solutions.
2. Be able to transform practical problems into a system of linear equations of two variables by setting two unknowns. Can test solutions to equations or systems of equations
After 5 minutes, compare who can complete the test and practice correctly
System of linear equations of two variables PPT, the second part of the content: Discuss:
In the above equations X-Y=2 and X+1=2(Y-1), do X and Y have the same meaning?
The meanings of X and Y are the same respectively. Therefore, X and Y must satisfy the equations X-Y=2 and X+1=2(Y-1) at the same time. By combining them, we get:
X-Y=2
X+1=2(Y-1)
Like this, when two linear equations are put together, there are two unknowns, thus forming a system of linear equations in two variables.
Generally speaking, the common solution of two equations of a system of linear equations of two variables is called the solution of this system of linear equations of two variables.
A system of linear equations in two variables has one and only one solution.
Can you tell me how to check their solutions?
System of linear equations in two variables PPT, part 3: after-class exercises
1. Multiple choice questions
1. The linear equation of two variables 3x+2y=11 ( )
A. Any pair of rational numbers is its solution
B. There is only one solution
C. There are only two solutions
D. Infinitely many solutions
2. The following system of equations: (x, y are unknowns, a, b are constants)
x+y=3 2x+y=1 x=3 x=a
⑴ ⑵ ⑶ ⑷
2x-y=3 y+z=2 y=4 x-y=b
Among them, the number of systems of linear equations of two variables is ( )
A, 1 B, 2 C, 3 D, 4
System of linear equations in two variables PPT, part 4 content: Class summary:
1. The equation contains two unknowns (x and y), and the exponents of the unknowns are both 1. An equation like this is called a linear equation of two variables.
2. After combining the two linear equations, there are two unknowns, forming a system of linear equations in two variables.
3. The values of the two unknowns that make the values on both sides of a linear equation of two variables equal are called solutions to the linear equation of two variables.
4. Generally, the common solution of the two equations of a system of linear equations of two variables is called the solution of the system of linear equations of two variables.
5. A linear equation of two variables has infinite solutions; a system of linear equations of two variables has one and only one solution.
Keywords: Free download of Hebei Education Edition mathematics PPT courseware for seventh grade volume 2, PPT download of linear equations in two variables, .PPT format;
For more information about the "System of Linear Equations in Two Variables" PPT courseware, please click the "System of Linear Equations in Two Variables" ppt tag.
"Application of linear equations of two variables" PPT courseware:
The first part of the PPT courseware "Applications of Linear Equations in Two Variables": Basic Quantity Relationships in Travel Problems Distance = Time Speed Time = Distance/Speed Speed = Distance/Time Simultaneous travel in opposite directions Distance = Sum of time speeds Simultaneous travel in the same direction =speed of time..
"Applications of Systems of Quadratic Equations" PPT:
"Applications of Linear Equations of Two Variables" PPT Part One: Review the past and learn the new. List the basic steps for solving word problems with linear equations of one variable. What is the key to solving word problems using equations? Find the equivalence relationship. The problem of two horses carrying a load is a widely circulated question in ancient India..
"Solution of linear equations of two variables" PPT download:
"Solution to a system of linear equations of two variables" PPT download Part 1: Review the past and learn the new What is the idea for solving a system of linear equations of two variables? What is substitution elimination method? What are the steps for solving problems by substitution elimination method? Observe the following linear equations of two variables and look for their characteristics..
File Info
Update Time: 2024-09-30
This template belongs to Mathematics courseware Hebei Education Edition Seventh Grade Mathematics Volume 2 industry PPT template
"System of linear equations in two variables" PPT 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 two variables" PPT 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 two variables" PPT, 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.)