1. (multiplication/ division)
Today’s Lesson:
What:
One-step equations
(multiplication/ division)
Why:
. . . so I can solve multiplication and division one-step equations .

2. How do you solve a multiplication one-step equation
How do you solve a multiplication one-step equation? a division one-step equation?

3. If 3 “x’s” are 15, then how much would one “x” be??
Modeling Multiplication equations:
1) x = 15
If 3 “x’s” are 15, then how much would one “x” be??
x = 5
2) x = 16
x = 4

4. 5x = -55 5 5 x = -11 Multiplication equations:
To solve a multiplication equation, we perform the __________________________ operation. In other words, we ________________________________ on both sides of the equation!!!
inverse
DIVIDE
example:
5x = -55
x = -11
Find the # with “x.” This is the coefficient. Then, DIVIDE on both sides by that # !!

5. Guided examples: 3)
= -8x
x = 10 4)
- x = 75
x = -75

6. YOUR TURN:
Divide on both sides! 5)
- x = -12
x = 12 6)
90 = 3x
x = 30

7. 𝒙 𝟒 = -20 ( 𝟒 𝟏 ) 𝒙 𝟒 = -20 ( 𝟒 𝟏 ) x = -80 example:
Division equations:
To solve a division equation, we perform the _______________________________ operation. In other words, we ________________________________ on both sides of the equation!!!
inverse
MULTIPLY
example:
𝒙 𝟒 = -20
( 𝟒 𝟏 ) 𝒙 𝟒 = -20 ( 𝟒 𝟏 )
x = -80

8. Guided examples: 1)
𝑥 = 6
x = 120 2)
-50 = 𝑥 −3
x = 150

9. 3) 𝑥 15 = 2 4) -8 = 𝑥 −8 YOUR TURN: Multiply on both sides! x = 30
𝑥 15 = 2
x = 30 4)
-8 = 𝑥 −8
x = 64

10. 1) 2 3 x = 6 2) 4 5 x = -8 3) 3 4 x = 9 Equations with a fraction:
YOUR TURN:
3) x = 9
x = 12

11. Wrap-it-up/ summary:
1) How do you solve a multiplication one-step equation? a division one-step equation?

12. Scene from “A Christmas Story” (for venn diagram question) . . .

13. END OF LESSON