Eg.
Model: 8 times a number plus 4 is 12 8n+4=12
5y-6=19
numerical coefficient =5
variable =5
constant =6
C+(-3)=(-6) Brackets in this equation is use to reduce confusion.
Opposite Operations
A+1=3
A+1-1=3-1
A=2
Sub A+1=3
2+1=3
3=3
reverse order of operation
4c-4=17
4c-3+3=17+3
4c=20
4c÷4=20÷4
c=5
sub 4c-3=17
4(5)-3=17
20-3=17
17=17
Here is a video of solving algebra equations.
5 comments:
Hi Cindy. Great scribe post! The video was helpful and so was the link. The font is nice and colorful but it should be a bit larger. I like how you mentioned that the brackets are to reduce confusion! The images matched your definition or what you were trying to explain. Good Job! Here is another game/link on solving algebra equations that may also help. ; http://www.xpmath.com/forums/arcade.php?do=play&gameid=64
Hi Cindy. Good scribe post. The fonts had really nice colors, but some were small and one color was really bright and hurts your eyes. I liked how you explained that the brackets are used to reduced confusion. And also the pictures you put but the definition explained what it ment well.
Hi Cindy goo scribe post. The font and colour was really nice but some were them were a little small and some were a little bright. I like how you really explained the brackets part. i like how your image matched the topic you were talking about. Good Job Cindy :)
here is another link or game
http://ca.ixl.com/math/grade-7/evaluate-single-variable-expressions-ii
Hi Cindy! Wow, good job in your post. You explained Equations very well. The definition was very true, and I like that you showed an example to help use more. The pictures were also great and I like how you change the font color, very attractive. The link and the game is very helpful. To make your scribe post even better, I suggest you change the font size, to show what topic you are taking about, other than that it's great. Here's another link and video to help us more:
Link: http://ca.ixl.com/math/grade-7/graph-a-line-from-a-function-table
Video: http://www.youtube.com/watch?v=07z_75PgjPg&feature=related
Thank you!
Hey Cindy, great scribe post. You explained everything that we did in class. I liked how you added color to your post it made it stand out more and also easy to understand. I liked how you added pictures that explained what was going and about the topic. Good job Cindy. :)
Here's another video I found for you
http://www.youtube.com/watch?v=HRRb-I1POHk
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