"Solving Practical Problems by Using Equations" Equations PPT Courseware 2

Description

"Solving Practical Problems by Using Equations" Equations PPT Courseware 2

The Big Wild Goose Pagoda in Xi'an is 64 meters high, which is 22 meters less than twice the height of the Small Wild Goose Pagoda.

The height of the Small Wild Goose Pagoda × 2-22 = the height of the Big Wild Goose Pagoda

The height of the Small Wild Goose Pagoda × 2 = the height of the Big Wild Goose Pagoda + 22

The height of the Small Wild Goose Pagoda × 2 - the height of the Big Wild Goose Pagoda = 22

The Big Wild Goose Pagoda in Xi'an is 64 meters high, which is 22 meters less than twice the height of the Small Wild Goose Pagoda.

How else can we formulate an equation? Share your ideas in a group.

Solution: Let the height of the Small Wild Goose Pagoda be x meters. Solution: Let the height of the Small Wild Goose Pagoda be x meters.

2x＝64＋22 2x－64＝22

2x＝86 2x＝86

x＝43 x＝43

Answer: The Small Wild Goose Pagoda is 43 meters high. Answer: The Small Wild Goose Pagoda is 43 meters high.

Notice

① Find the equivalent relationship based on the conditions in the question;

② Distinguish between known quantities and unknown quantities in equivalent relationships, and use letters to represent parallel equations of unknown quantities;

③ After solving the equation, check it in time.

⒈ Solve equations.

4x+20=56 5x-8.3=10.7

Solution: 4x=36 Solution: 5x=19

x=9 x=3.8

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For more information about the PPT courseware "Solving Practical Problems with Equations and Equations", please click on the ppt tag of Equations and Solving Practical Problems with Sequences of Equations.

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Update Time: 2024-11-05

This template belongs to Mathematics courseware Jiangsu Education Edition Sixth Grade Mathematics Volume 1 industry PPT template

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