Equations
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Transcript of Equations
![Page 1: Equations](https://reader036.fdocuments.us/reader036/viewer/2022083116/588772db1a28ab22358b6c1f/html5/thumbnails/1.jpg)
Equations
![Page 2: Equations](https://reader036.fdocuments.us/reader036/viewer/2022083116/588772db1a28ab22358b6c1f/html5/thumbnails/2.jpg)
Equations
true equations
false equations
Unknown equations
![Page 3: Equations](https://reader036.fdocuments.us/reader036/viewer/2022083116/588772db1a28ab22358b6c1f/html5/thumbnails/3.jpg)
Equations
1. 35 ĭ 7 = 5 2. 25 + 12 ≠ 25 ĭ 123. 7 ĭ 8 > 50 4. 20 + 17 = + 20
The symbol “ = ” is read as is equal to or equals
![Page 4: Equations](https://reader036.fdocuments.us/reader036/viewer/2022083116/588772db1a28ab22358b6c1f/html5/thumbnails/4.jpg)
is equal toequals
![Page 5: Equations](https://reader036.fdocuments.us/reader036/viewer/2022083116/588772db1a28ab22358b6c1f/html5/thumbnails/5.jpg)
• 1. 35 ĭ 7 = 5 2. 25 + 12 ≠ 25 ĭ 12
• 3. 7 ĭ 8 > 50 4. 20 + 17 = + 20
• There is = from 1 and 4 we call “ equation”
![Page 6: Equations](https://reader036.fdocuments.us/reader036/viewer/2022083116/588772db1a28ab22358b6c1f/html5/thumbnails/6.jpg)
Exercise1 1. 11 × 12 = 1322. 14 + 8 < 20 + 53. 23 – 18 ≠ 4. 100 55. 25 + ×
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True equation1) 1 year = 12 months2) 60 minutes = 1 hour3) 1 week = 7 days4) 1 year = 120 days5) 45 + 89 – 12 = 122
True equation False equation
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Equations with unknownX + 15 = 30
46 – A = 22
D 8 = 14
unknown
unknown
unknown
The unknown is called variable