"Solving a system of linear equations in two variables" A system of linear equations in two variables PPT (Lesson 2)

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"Solving a system of linear equations in two variables" A system of linear equations in two variables PPT (Lesson 2), 27 pages in total.

Part One: Learning Objectives

1. Be able to use addition and subtraction to solve systems of linear equations in two variables. (emphasis)

Solving a system of linear equations in two variables PPT, part 2: teaching a new lesson

Use addition and subtraction to solve a system of linear equations in two variables

In conclusion

When the coefficients of an unknown number of two equations in a system of equations are opposite or equal to each other, you can add the two sides of the equation (the coefficients are opposite to each other) or subtract (the coefficients are equal) to eliminate the unknown number and get an linear equation of one variable, and then find the solution to the system of linear equations of two variables.

The method above for solving a system of linear equations in two variables is called the addition, subtraction and elimination method, or the addition and subtraction method for short.

Solving a system of linear equations in two variables PPT, the third part: practice in class

1.The solution of the system of equations is _________.

2. Use addition and subtraction to solve systems of equations ( )

3. Solve the following system of equations

Solving linear equations in two variables PPT, part 4 content: Class summary

The basic idea is to "eliminate elements"

General steps for solving systems of linear equations in two variables using addition and subtraction

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"Solving Systems of Linear Equations in Two Variables" PPT courseware for systems of linear equations in two variables (Lesson 2):

"Solving Systems of Linear Equations in Two Variables" PPT courseware for systems of linear equations in two variables (Lesson 2), a total of 25 pages. The first part of the content: Learning objectives: directly add, subtract, and eliminate elements first to deform, then add and subtract elements to solve the system of equations.. . ... ... Solving a system of linear equations in two variables PPT, second...

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Update Time: 2024-11-22

This template belongs to Mathematics courseware Beijing Normal University Edition Eighth Grade Mathematics Volume 1 industry PPT template

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