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 9/6/16

Solution of an Equation A number that can be substituted for the variable to make the equation true

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

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

Example 2 Example 3

Example 4 Example 5

Example 6 Example 7