1. Solving Equations with Addition or Subtraction Medina1

2. Definition 2  Addition/Subtraction– inverse operations  Solve: get the letter by itself opposites variable

3. Steps Medina3 1.Use the inverse operation of addition or subtraction on both sides of the equation 2. Check answer “You know you are done solving when there is a positive 1 in front of the variable.” coefficient

4. Solving Equations with Algorithm Medina4 To Solve: Original problem Add 4 to both sides Check answer

5. Solving Equations with Algorithm Medina5 Check:

6. Solving Equations with Algorithm Medina6 To Solve: Original problem Subtract 4 from both sides Check answer Add the opposite

7. Solving Equations with Algorithm Medina 7 Check:

8. Solving Equations with Algorithm Medina 8 To Solve: Original problem Subtract ¾ from both sides Check answer

9. Solving Equations with Algorithm Medina 9 Check: