Thursday, September 30

285234 bbb

Today’s Agenda

1. Fill in planner1. Practice 2-2

2. Bell Work

3. Collect test corrections and grade Practice 2-1

4. Solving Two Step Equations (Notes)

5. Group Activity

6. Independent Work

Bell Work(Solve each equation)

123)4(3 xx

459)5(9 ww

nnn 32

ObjectiveSWBAT use the distributive property to solve

multi step equations using addition, subtraction, multiplication, and division.

Solving Multi Step Equations

If there are like terms on one side of an equation, use the____ _______ property to combine them. distributive

If there are grouping symbols in the equation, use the _______________ property to eliminate them. distributive

Steps for Solving a Multi-Step Equation

1. Clear the equation of fractions and decimals

2. Use the Distributive Property to remove parenthesis on both sides

3. Combine like terms on both sides

4. Undo addition or subtraction

5. Undo multiplication or division

78122 cc7812)12( c

78123 c12 12

Example 1

3 3663 c

22c

Check Your Solution c 22Example 1 78122 cc

781222222 78122244

781266 7878

12)4(2 b1282 b

8 8

Example 2

2 242 b

2b

Solving a Multi-Step Equation with Fractions

Two methods

1. Rewrite the equation with fraction coefficients.

2. Multiply to “clear” the fractions

723

2xx

72

1

3

2 xx

38245

4

yy

2038)245

4(20

yy

76040544 yy

76040516 yy

76

3

6

4 xx

76

7x

7

67

6

7

7

6 x

6x

7604021 y40 40

72021 y21 21

29.34y

Solving an Equation with Decimals

You can clear an equation of decimals by multiplying by a power of 10.

25.1375.85.0 a

)25.13(100)75.85.0(100 a132587550 a

875 875

45050 a50 50

9a

12)4(2 b1282 b

8 8

Example 3

2 242 b

2b

http://www.quia.com/rr/168572.html

ObjectiveSWBAT use the distributive property to solve

multi step equations using addition, subtraction, multiplication, and division.