1. Multiplication and Division Equations SWBAT apply the division property of equality to solve algebraic equations; apply the multiplication property of equality to solve algebraic equations

2. Undoing Operations How do you un-do addition? How do you un-do addition? Subtraction Subtraction How do you un-do subtraction? How do you un-do subtraction? Addition Addition What do we call this relationship? What do we call this relationship? Inverse operations Inverse operations What is the opposite of multiplication? What is the opposite of multiplication? Division Division What is the opposite of division? What is the opposite of division? Multiplicaiton Multiplicaiton

3. Examples 4x = 124 4x = 124 5s + s = -48 5s + s = -48 96 = -3y 96 = -3y x ÷ 12 = 3 x ÷ 12 = 3 _y_ = 56 _y_ = 56 8 5 = w ÷ (-13) 5 = w ÷ (-13)

4. Examples _m_ = -9 _m_ = -9 -7 -7 e ÷ (-11) = -11 e ÷ (-11) = -11 a ÷ 10 = -|-13| a ÷ 10 = -|-13| -24x = |72| -24x = |72| 6z + z = -29 – 13 6z + z = -29 – 13 144 = -12n 144 = -12n

5. Examples Try the 4 problems on your worksheet Try the 4 problems on your worksheet n = -10 n = -10 x = -6 x = -6 i = 0 i = 0 v = -24 v = -24

6. In your groups try problems 1-6 on the back of your sheet a = 60 a = 60 m = 147 m = 147 t = -15 t = -15 q = -6 q = -6 f = -7 f = -7 c = 4 c = 4