1. Lesson 3.3 Solving Multi-step Equations Mr. Beltz & Mr. Sparks

2. GOAL: Use two or more steps to solve a linear equation. Key Words: –Like Terms –Distributive Property

3. ***Change Subtraction to Addition, take the Opposite of the next number.*** 1 st Draw a line underneath the equal sign. 2 nd Circle the variable (remember the sign to the left stays with the variable) 3 rd Simplify one or both sides. 4 th Do the Inverse Operation 1 st Addition & Subtraction 2 nd Multiplication & Division

4. -  + Draw the line Circle the Variable Simplify Inverse Operation 3x + 7 = -8 + -7 + -7 3x = -15 3 3 x = -5

5. Practice Page 144 #1-3 *Show all work

6. P. 144 #1 6x – 15 = 9 6x + -15 = 9 + 15 + 15 6x = 24 6 6 x = 4 -  + Draw the line Circle the Variable Simplify Inverse Operation

7. P. 144 # 2 7x – 4 = -11 7x + -4= -11 +4 +4 7x = -7 7 x = -1 -  + Draw the line Circle the Variable Simplify Inverse Operation

8. P. 144 #3 y = -2

9. Combining Like Terms First 7x – 3x – 8 = 24 7x + -3x + -8=24 (7x+ -3x) 4x + -8 = 24 + 8 + 8 4x 32 4 4 x = 8 -  + Draw the line Circle the Variable Simplify Inverse Operation

10. Practice P. 147 # 7- 12