1. { 3.2: Solving Addition and Subtraction Equation

2.  Subtraction Property of Equality: If you subtract the same number from each side of an equation, the two sides remain equal. Properties of Equality

3.  Addition Property of Equality: If you add the same number from each side of an equation, the two sides remain equal. Properties of Equality

4. Example

5. Example

6. Example

7. Example

8. Example

9. Example

10.  Clownfish and angelfish are popular tropical fish. An angelfish can grow to be 12 inches long. If an angelfish is 8.5 inches longer than a clownfish, how long is a clownfish? Example

11.  A pair of shoes costs $25. This is $14 less than the cost of a pair of jeans. Find the cost of the jeans. Example