1. 3. 3 Solving Equations Using Addition or Subtraction 3
3.3 Solving Equations Using Addition or Subtraction 3.4 Solving Equations Using Multiplication or Division
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2. Solution of an Equation
A number that can be substituted for the variable to make the equation true

3. Example 1
Is n=12 a solution for n-8=20?
How about 28?

4. Inverse Operations Are opposites- they undo each other
Adding and subtracting
Multiplying and dividing
Use these to move terms to the opposite side of the equation

5. Example 2
Example 3

6. Example 4
Example 5

7. Example 6
Example 7