Day Problems• Solve each equation. Check your answer.

1. x – 3 = 10 2. m – 3 = -9

3. 21 = a + 14 4. -2 = k - 11

5. 1 4

5 5r

2.1 Solving One-Step Equations (Cont.)• Solving Equations using Multiplication and

Division.– Multiplication and division are inverse operations.

• Multiplication Property of Equality– For every real number a, b, and c, if a = b, then

a • c= b • c• Example:

• Division Property of Equality.– For every real number a, b, and c, if a = b, then

a ÷ c = b ÷ c.• Example:

6 63, 2 3 2

2 2so

3 1 43 1 4,

2 2so

Using the Multiplication Property of Equality

• Solve 10.44

r

( 10.4)4

4 4r

41.6r

Using Reciprocals to Solve Equations

• Solve

• MAKE SURE YOU CHECK THE ANSWER!!!!

39

4x

4 43(

4 39)

3x

36

123

x

Using the Division Property of Equality• Solve 4c = -96.

4c = -96

4 4

c = -24

More Practice!!!!

• Textbook – p. 78 # 22 – 52 even, 55 – 63 odd.

• Homework – finish worksheet 2.1