1. Solve multi step equations and inequalities.
Lesson 1.5 Objective:
Solve multi step equations and inequalities.

2. Ex. 2
Ex. 1

3. 5x + 2 = 2x - 10 -2x -2x 3x + 2 = -10 - 2 = - 2 3x = -12 3 3 x = -4
Example 3:
5x + 2 = 2x - 10
-2x x
3x + 2 = -10
- 2 = - 2
3x = -12
x = -4

4. Example 4:
-x x
Dividing by a positive 2, so we don’t need to switch the sign 

5. 2(3x - 1) + 7 = -1 6x + -2 + 7 = -1 6x + 5 = -1 -5 = -5 6x = -6 6 6
Example 5:
2(3x - 1) + 7 = -1
6x = -1
6x + 5 = -1
-5 = -5
6x = -6
x = -1

6. Example 6:
-3x x

7. What does this true statement mean?
Example 7:
4x - 8 = x
+4x x
- 8 = -8
What does this true statement mean?
Solution: ALL real numbers

8. Example 8:

9. Example 9: YOUR TURN

10. Example 10: Your turn

11. Are you a master???

12. Homework: 1.5 in HW packet