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People's Education Press Second Grade Mathematics Volume 1
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Hebei Education Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
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People's Education High School Mathematics Edition B Compulsory Course 2
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
Qingdao Edition Seventh Grade Mathematics Volume 2
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Qingdao Edition Second Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
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Category | Format | Size |
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People's Education Press Seventh Grade Mathematics Volume 1 | pptx | 6 MB |
Description
"Solving linear equations of one variable" PPT courseware for linear equations of one variable 6
I believe you know how to ask for
1. When X takes what value, the value of the algebraic expression X-7 is 5?
2. Will the value of the algebraic expression 7x be equal to the value of the algebraic expression 6x-4?
We can use the equations we learned to solve:
1. X - 7 = 5
2. 7x = 6x - 4
Generally, after changing the sign of a term in an equation and moving it from one side of the equation to the other, this deformation is called a term shift.
Please tell me which type of deformation the following belongs to:
(1) From 3x-5+4x we get 3x+4x-5
(2) From 4x-5=3x, we get 4x-3x= 5
What new concepts did you learn in this class? What should we pay attention to? What problems will you learn to solve?
1. After changing the signs of the terms in the equation, move them from one side of the equation to the other side. This deformation is called moving terms. The number must be changed when moving items.
2. Learned how to solve linear equations of one variable containing parentheses. Its problem-solving procedure is: remove brackets ---- move terms ---- combine similar terms ---- divide both sides by the unknown coefficient.
What questions do you have?
1. What do you think is the best way to solve the following equations? Why? Will you choose wisely?
1. 4x+8=5x
2. 3(2x-1)=2(2x-1)+5
3. 5 - [ 2x- ( 3x+1 )] = 4
Solution: Move the terms and get 8=5x-4x. Combine similar terms and get 8 = x, that is, x=8
2. How to solve a linear equation of one variable with a denominator?
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For more information about the PPT courseware "Solving linear equations of one variable and linear equations of one variable", please click the "Solving linear equations of one variable ppt linear equations of one variable ppt" tag.
"Solving linear equations of one variable" PPT courseware 2:
"Solving linear equations of one variable" PPT courseware 2 The ancient Greek mathematician Diophantus (around 250 BC) is known as the father of algebra. Very little is known about his life story, but in a book "Greek Poetry. .
"Solving linear equations of one variable" PPT courseware:
"Solving linear equations of one variable" PPT courseware, please judge. When Xiaogang was doing homework, he encountered the equation 2x=5x. He divided both sides of the equation by x at the same time, and he got 2=5! Where did he go wrong? What are the basic properties of the equation? Solve the equation: 5x-2=8 Solve...
"Solving linear equations of one variable" PPT courseware for linear equations of one variable 7:
"Solving linear equations of one variable" PPT courseware for linear equations of one variable 7 Determine whether the following expressions are equations? And explain the reasons (think about it, you must be able to do it!). 4+2=6 (2) 5x-13=5 (3) x-32 (4)x+1/2 (5)5x-13=5+x (6) 5x+13=5+y What is one yuan one...
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Update Time: 2024-09-03
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