## Monday, May 3, 2010

### Review: Solving One Step Algebra Equations

Apply the opposite operation

Remember
-an opposite operation is an operation that "undoes" another operation.
-division and multiplication are opposites
-whatever you do one side you must do the same to the other side to maintain balance

1st step
- isolate the variable/get the letter by itself
2nd step- apply opposite operation
3rd step- check the answer, substitute the answer for the letter of the original equation

A+5=7
-5 -5
A=2
A+5=7
2+5=7
7=7

To extend our knowledge, we had equations to solve:

a) b-3=5
- +3 +3
- b=8
b-3=5
8-3=5
8=8

b) c÷3=7
- x3 x3
- c=21
c÷3=7
21÷3=7
21=21

c) 4d=16
- ÷4 ÷4
- d=4
4d=16
4(4)=16
16=16

Other examples:

HOMEWORK
: Pg. 405=407 #1-21

1. Excellent post, I really liked it. But maybe next time use a little more colour. The slide show type thing at the bottom was very helpful. There's nothing else I can say except for... great job. (:

2. Good post Julibella. I really liked your pictures. The only thing i wanted to see in your post was alittle more colours. Anyways Excellent job. Keep up the good work. (:

3. Nice post Julibella. I liked your pictures, explanation and how you put a video. Next time put more colour because that's what attracts me. Other than that.. good job :)

4. Great Job Julibella!, I liked the pictures you posted and also that you put a video to help others if they still don't get the notes..but I think you should add a bit more colours..but other than that GREAT JOB! :D

5. Grate post you did a really good job but iam with cathlene try to add more coulor and that i also like all the pictures!!!!!! Grate Job

6. Excellent job Julibella! I really liked your post, your pictures were great and I liked how you added an explanation video. I agree with the other commenters, maybe next time you should add a little more colour, but other than that, great job!!(:

7. Great job Julibella!!! I liked all the colours you used and I liked how you highlited the nsteps we learned. You explaned all that we learned in class and was easy to follow.

8. Good job Julibella, i liked the colors and pictures and how you highlighted the steps we learned. You explained it all very well, good job and keep it up.

9. Great job Julibella, the blog post was realy well done and had a lot of information, i like that you posted a video and I realy liked the pictures. Keep up the good work!:)

10. Nice Job Juliebella!I liked the colors and pictures,and I like that slide show too:)

11. Good job! i liked the pictures. You explained everything very clearly and the slide thingy was very helpful. good job!

12. Great Post Julibella ! Great picture too, it helped me alot. I liked how you explained and showed all we did in class that day. Maybe add some colour to it, but other than that, great job!

13. Good Job! Everything was explained well and the picture is pretty good. Good Job!

14. Good job, Julibella! Everything was included, easy to understand,and neat. I also liked your picture and link. You could have added some color, but other than that, great job!

15. WOW jellybean if I neede a tutor(which I do)i'd pick you. Every time you and Kristel do a blog it has always been a WOW and So much, I don't think I could do that. yOU GUYS give out so much
-sophia
P.s.
Thanks for giving me a Wow on my drawing to.

16. Opps I forgot good picture.
-sophia

17. really good post i really liked it but maby next time you should add more colours and but, other then that it was great

18. Great post.I like how you put all the info on. Maybe add a bit more colour. Good post.

19. good job Julibella