1. Solving Addition Equations SWBAT solve addition equations using the subtraction property of equality

2. A Demonstration  In groups you may come up as called to examine the balance scales  How can you determine how much weight is in the unknown envelope?  Draw what you saw in the boxes provided.

3. Solving Equations Keep it balanced!!! Keep it balanced!!! You can do anything you want to one side, as long as you do the SAME to the otherYou can do anything you want to one side, as long as you do the SAME to the other Isolate the variable. Isolate the variable. Get the unknown by itself and the other side will tell you what it is worthGet the unknown by itself and the other side will tell you what it is worth

4. Examples  3.415 = 1.626 + s  0 + m = 2.3  4.263 = 4.263 + k  119 + 246 + f = 893  1.1 + 1.83 + g = 6.25  2597 + x = 6233  y + 13.84 = 20.29

5. Try the problems on your paper  f = 528  n = 0.143  z = $5.25  g = 15  x = 1.25