solving an-equation-is-like-unwrapping-a-present
DESCRIPTION
from: http://www.slideboom.com/presentations/637780/Solving-an-Equation-is-Like-Unwrapping-a-PresentTRANSCRIPT
![Page 1: Solving an-equation-is-like-unwrapping-a-present](https://reader035.vdocument.in/reader035/viewer/2022062319/558beaa0d8b42ac9158b45af/html5/thumbnails/1.jpg)
Solving an Equationis Like Unwrapping a Present
Oh no…
![Page 2: Solving an-equation-is-like-unwrapping-a-present](https://reader035.vdocument.in/reader035/viewer/2022062319/558beaa0d8b42ac9158b45af/html5/thumbnails/2.jpg)
One way to think about solving an equation is to think about
UNWRAPPING a present.
But first, we need to wrap our present…
![Page 3: Solving an-equation-is-like-unwrapping-a-present](https://reader035.vdocument.in/reader035/viewer/2022062319/558beaa0d8b42ac9158b45af/html5/thumbnails/3.jpg)
1. Put present in box.
2. Wrap with paper.
3. Stick on a bow.
Wrapping…
![Page 4: Solving an-equation-is-like-unwrapping-a-present](https://reader035.vdocument.in/reader035/viewer/2022062319/558beaa0d8b42ac9158b45af/html5/thumbnails/4.jpg)
To unwrap the present, we do the same actions, but in the reverse order.
In math, we call operations that undo each other inverse operations.
Examples of inverse operations are addition and subtraction and multiplication and division.
![Page 5: Solving an-equation-is-like-unwrapping-a-present](https://reader035.vdocument.in/reader035/viewer/2022062319/558beaa0d8b42ac9158b45af/html5/thumbnails/5.jpg)
1. Lose the bow.
2. Unwrap paper.
3. Take present OUT.
Unwrapping…
![Page 6: Solving an-equation-is-like-unwrapping-a-present](https://reader035.vdocument.in/reader035/viewer/2022062319/558beaa0d8b42ac9158b45af/html5/thumbnails/6.jpg)
MeOWW!Thanks.
![Page 7: Solving an-equation-is-like-unwrapping-a-present](https://reader035.vdocument.in/reader035/viewer/2022062319/558beaa0d8b42ac9158b45af/html5/thumbnails/7.jpg)
Solving a Two-Step Equation
4x – 16 = 20 What is happening to x?First x is being multiplied by 4,and then 16 is being subtracted fromthat product.
Undo the subtraction of 16 by adding 16to both sides of the equation.
+16 +16
4x = 364 4
x = 9Undo the multiplication of by 4 by dividing both sides of the equation by 4.
4x – 16 = 204(9)–16 = 20
Finally – Check your answer. Substitutethe value you got for x and see if it’s a truestatement.✔
![Page 8: Solving an-equation-is-like-unwrapping-a-present](https://reader035.vdocument.in/reader035/viewer/2022062319/558beaa0d8b42ac9158b45af/html5/thumbnails/8.jpg)
Disclaimer:No kittens were hurt during the making of this PowerPoint.