- Go to http://voicethread.com
- Click on "sign in or register"
- Click on "register"
- Enter your name (Choose the same name as you did for blogger. Remember, first name only!) and e-mail address and create a password. I would even use the same password that you did for blogger so that you can remember it.
Welcome to the Jellybean Jar. A World where enthusiasm, creativity and mathematics mesh together.
Wednesday, February 27, 2008
Testing Voicethread
Solving Equations
Hey what’s up you guys Im the blogger for today and I’ll be showing you how to solve multi step equation by simplifying first before solving.
Okay so in our class today Ms Nicholson taught us how to solve equations that need to be simplified first to get the answer. Here’s an example:
EX: 2(x + 1) = 4
Okay so to solve this we have to simplify both sides first so:
2(x + 1) = 4
= 2x + 2 = 4 now it’s already simplified now we can start finding the value
of x , to do that we have to get the x all by itself so:
= 2x + 2 - 2 = 4 – 2 and since this is an EQUATION, the RULE is: what ever you do on
The other side you do to the other side so that it will remain balanced.
= 2x = 2 Now that the x is all by itself we have to divide both sides by the number
coefficient of x:
= 2x/2 = 4- 2
after we divided both sides, we are left with the answer:
x = 2
we can now check if it’s correct:
2(x + 1) = 4
= 2x + 2 = 4
= 2x + 2 – 2 = 4 – 2
= 2(2) = 4
= 4 = 4 and that’s it were done 4 equals 4 right? So that means that the value of x that we have is correct.
That all for my scribe hope you understand it. And oh yeah REMINDER to my
classmates we have an textbook assignment. Its page 91 27-40(odd) and page 98
1-12(odd) 32, 34. and that ends my scribe.
Okay so in our class today Ms Nicholson taught us how to solve equations that need to be simplified first to get the answer. Here’s an example:
EX: 2(x + 1) = 4
Okay so to solve this we have to simplify both sides first so:
2(x + 1) = 4
= 2x + 2 = 4 now it’s already simplified now we can start finding the value
of x , to do that we have to get the x all by itself so:
= 2x + 2 - 2 = 4 – 2 and since this is an EQUATION, the RULE is: what ever you do on
The other side you do to the other side so that it will remain balanced.
= 2x = 2 Now that the x is all by itself we have to divide both sides by the number
coefficient of x:
= 2x/2 = 4- 2
after we divided both sides, we are left with the answer:
x = 2
we can now check if it’s correct:
2(x + 1) = 4
= 2x + 2 = 4
= 2x + 2 – 2 = 4 – 2
= 2(2) = 4
= 4 = 4 and that’s it were done 4 equals 4 right? So that means that the value of x that we have is correct.
That all for my scribe hope you understand it. And oh yeah REMINDER to my
classmates we have an textbook assignment. Its page 91 27-40(odd) and page 98
1-12(odd) 32, 34. and that ends my scribe.
Labels: Michael Torres
Tuesday, February 12, 2008
equations using division
doing this algebraically
Ex.
7y=63(first thing you want to do is to leave the variable in one side alone.)
7y=63
7......7 (you need to divide it now)
y=9
doing it with algebra tiles
Ex.
1) it is 2x=-4
2) regroup the tiles to display the value for one variable
3)the answer is x=2
just look at this site for more info
...
Ex.
7y=63(first thing you want to do is to leave the variable in one side alone.)
7y=63
7......7 (you need to divide it now)
y=9
doing it with algebra tiles
Ex.
1) it is 2x=-4
2) regroup the tiles to display the value for one variable
3)the answer is x=2
just look at this site for more info
...
Labels: Christian