lesson 21 aim: how do we solve a two-step equation and use deductive reasoning to justify the steps?
TRANSCRIPT
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Lesson 21
Aim: How do we solve a two-step equation and use deductive
reasoning to justify the steps?
![Page 2: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/2.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Problem of the Day
![Page 3: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/3.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Problem of the Day
![Page 4: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/4.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Problem of the Day
![Page 5: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/5.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
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How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 7: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/7.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 8: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/8.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 9: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/9.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 10: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/10.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 11: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/11.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 12: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/12.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 13: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/13.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 14: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/14.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 15: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/15.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 16: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/16.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 17: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/17.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 18: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/18.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 19: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/19.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 20: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/20.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 21: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/21.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 22: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/22.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 23: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/23.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 24: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/24.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 25: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/25.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 26: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/26.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 27: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/27.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 28: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/28.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 29: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/29.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 30: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/30.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 31: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/31.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Guided Practice
![Page 32: Lesson 21 Aim: How do we solve a two-step equation and use deductive reasoning to justify the steps?](https://reader034.vdocuments.us/reader034/viewer/2022051417/5697bf8a1a28abf838c8a85d/html5/thumbnails/32.jpg)
How do we solve a two-step equation and use deductive reasoning to justify the steps?
Independent Practice
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How do we solve a two-step equation and use deductive reasoning to justify the steps?
Independent Practice
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How do we solve a two-step equation and use deductive reasoning to justify the steps?
Classwork
Homework
p. 120–121: Examples 1, 2, 3Quick Check 1, 2, 3.p. 121: ex. 1, 2, 23p. 122: Example 4.Quick Check 4p. 121: ex. 24GPS p. 123: ex. 45
p. 122: ex. 6, 12, 20, 21, 24, 25, 31, 32, 34, 35, 39, 43, 47, 51, 57, 60Challenge: p. 124: ex. 65, 66Test Prep: p. 124: ex. 70, 71
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How do we solve a two-step equation and use deductive reasoning to justify the steps?
Lesson 21 Quiz