Download presentation

Published byMarianna Hutchinson Modified over 2 years ago

1
**Lesson 3.4- Solving Multi-Step Equations, pg. 142**

Objectives: To solve problems by working backward. To solve equations involving more than one operation.

2
Vocabulary Multi-Step Equations: equations with more than one operation. Consecutive Integers: integers in counting order. Consecutive integers: 7, 8, 9,… Consecutive odd integers: 5, 7, 9, 11.. Consecutive even integers: 10, 12, 14, 16… Number theory: the study of numbers and the relationships between them.

3
**Ex. 1: Solve each problem by working backwards.**

A number multiplied by seven, and then the product is added to 13. The result is 55. What is the number? The English alphabet contains 2 more than twice as many letters as the Hawaiian alphabet. How many letters are there in the Hawaiian alphabet?

4
3. Nine is subtracted from a number, and then the difference is multiplied by 5. The result is 75. What is the number?

5
**Steps for Solving Multi-Step Equations**

Step 1: Undo addition and subtraction Step 2: Undo multiplication and division. Step 3: Check

6
**Ex. 2: Solve each equation.**

2.

7
3. n + 3 = 8.6

8
y – 1.5 = 5.32 = 5p + 3

9
**Ex. 3: Write an equation and solve each problem.**

Twelve decreased by twice a number equals Find the number.

10
**2. Find three consecutive integers whose sum is 42.**

11
**3. Find three consecutive even integers whose sum is -30.**

12
**Summary Steps for Solving Multi-Step Equations**

Step 1: Undo addition or subtraction. Step 2: Undo multiplication or division. Step 3: Check. Consecutive integers: n, n+1, n+2,… Consecutive odd integers: n, n+2, n+4,… Consecutive even integers: n, n+2, n+4,… NBA #18, pg. 146, problems even

Similar presentations

OK

Warmup Your friend’s pay is twice the sum of your brother’s pay, which is $7.25/hr, and your pay. If your friend makes $32.65/hr, how much do you make?

Warmup Your friend’s pay is twice the sum of your brother’s pay, which is $7.25/hr, and your pay. If your friend makes $32.65/hr, how much do you make?

© 2018 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

Ppt on assembly line balancing Ppt on bank lending software Ppt on boilers operations manager Ppt on different types of computer softwaresoftware Ppt on history of cricket for class 9 download Ppt on chapter 3 atoms and molecules video Best ppt on bill gates Ppt on marketing management for class 12 Free ppt on albert einstein Ppt on ram and rom computer