Download presentation

Presentation is loading. Please wait.

1
**Agenda Homework Folders In Warm up**

Lesson: Solving Equations by Multiplication and Division Homework (if time)

2
**Objective The student will be able to:**

solve equations using multiplication and division.

3
**Warm Up Solve each equation. x – 3 = 5 y + 9 = 7 8 13 = m – 6**

f + 4 = -5 8 -2 19 -9

4
**To get the variable by itself, which number needs to be moved?**

1) Solve. -5t = 60 To get the variable by itself, which number needs to be moved? -5 To move the -5, you have to do the opposite operation. What operation will we use? division

5
1) Solve -5t = 60 -5 -5 t = -12 -5(-12) = 60 Draw “the river” to separate the equation into 2 sides Divide both sides by -5 Simplify Check your answer 60 = 60

6
**2) Solve 15 = 6n 6 6 2.5 = n 15 = 6(2.5) 15 = 15 Draw “the river”**

6 6 2.5 = n 15 = 6(2.5) Draw “the river” Divide both sides by 6 Simplify Check your answer 15 = 15

7
3) Solve -3v = -129 v = -126 v = -43 v = 43 v = 126 Answer Now

8
**4) Solve You don’t like fractions? Let’s get rid of them! **

“Clear the fraction” by multiplying both sides of the equation by the denominator.

9
**4) Solve 4 · · 4 x = -48 Draw “the river”**

Clear the fraction – multiply both sides by 4 Simplify Check your answer 4 · · 4 x = -48

10
**5) Solve = 18 3 · = 18 · 3 2x = 54 2 2 x = 27 Draw “the river”**

3 · = 18 · 3 2x = 54 x = 27 Draw “the river” Clear the fraction – multiply both sides by 3 Simplify Divide both sides by 2 Check your answer

11
**6) Which step clears the fraction in**

Multiply by 3 Multiply by 5 Multiply by -12 Multiply by -5 Answer Now

12
7) Solve b = -56 b = -14 b = 14 b = 56 Answer Now

13
Homework pg. 94 #11 – 19, 25 – 32, 40, 41, 42, 45, 53

Similar presentations

© 2024 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google