9
Solving One-Step Equations Addition & Subtraction Multiplication & Division

Solving one step equations (workshop 1)

Embed Size (px)

Citation preview

Page 1: Solving one step equations (workshop 1)

Solving One-Step Equations

Addition & Subtraction Multiplication & Division

Page 2: Solving one step equations (workshop 1)

Recall: A variable is an unknown value usually represented by a letter.

Example 1: 5 + x = 24 Addition

Example 2: y - 18 = 47 Subtraction

Example 3: 9a = 72 Multiplication

Example 4: b ÷ 3 = 18 Division

Page 3: Solving one step equations (workshop 1)

The Goal is to Isolate the Variable

Use the Inverse operation to get the variable by itself.“opposite”

Inverses

Inverses

Page 4: Solving one step equations (workshop 1)

Addition

Subtract number to both sides of the equal sign.

-5 -5 x = 19

5 + x = 24

Check: 5 + 19 = 24 24 = 24

Page 5: Solving one step equations (workshop 1)

Subtraction

Add number to both sides of the equal sign.

+18 +18 y = 65

y - 18 = 47

Check: 65 + 18 = 47 47 = 47

Page 6: Solving one step equations (workshop 1)

Multiplication

Divide number from both sides of the equal sign.

÷9 ÷ 9 a = 8

9a = 72

Check: 9 × 8 = 72 72 = 72

Page 7: Solving one step equations (workshop 1)

Division

Multiply number to both sides of the equal sign.

×3 ×3 b = 54

b ÷ 3 = 18

Check: 54 ÷ 3 = 18 18 = 18

Page 8: Solving one step equations (workshop 1)

Let’s Practice!

Please Work with a Partner on Page 6 of your Packets.

Page 9: Solving one step equations (workshop 1)

Images:

Comichttps://kalbfussmath9.wikispaces.com/Solving+One+Step+Equations