April 9, 2007

Today, we had type three and four equation quiz and did some problem solving.
The quiz problems are something like this :

6(x-2)=3x+2(x+1)
First, you have to multiply the number outside the brackets. Next, you have to get the
variable to same side. Then solve.
6x-12=3x+2x+2
6x-3x-2x=2+12
1x=14
x=14

here is another example:
-3(w+2)=10+w
-3w-6=10+w
-3w-w=10+6
-4w=16
w=-4

If you need more practice to solve this kind of problems see this web site:
http://www.sosmath.com/algebra/solve/solve1/s16/s16/s16.html
The next blogger is SW!