1. 4 -2 Solving Addition and Subtraction Equations (pgs 156 - 159) Standard: Patterns, Functions and Algebra Indicators: P9: Recognize a variety of uses for variables; represent the equation-solving process

2. Important Steps to Remember! Your goal for every equation… Use the… –(or opposite operation) Keep the equation… Show every… To Isolate the variable Inverse operation Balanced Step!

3. Example… Although it seems easy… be sure to keep your equation balanced and always show that work! x + 3 = - 4 -3 - 3 X = - 7

4. More Examples 1) w - 4.6 = -10.3 +4.6 + 4.6 w = - 5.7 2) y + 3/4 = 5/8 - 3/4 -3/4 y = -1/8 (-6/8)

5. Homework 4-2 Pg. 158-159 # 4-10 All #12-28 Even #41-42